Time to paint the living room. The room measures 20 feet wide by 30 feet long by 12
feet high. There are two doors, 7 feet high by 3 feet wide, and four windows, each 4 feet
high by 3 feet wide. I'm going to paint the walls and ceiling with two coats of paint at 25
cents per square foot. What will it cost?

Answers

Answer 1

The cost to paint the walls and the ceiling is $855

How much will it cost?

First, we need to find the area that will be painted.

The area of two of the walls is:

A = 20ft*12ft = 240ft²

The area of the other two walls:

A' = 30ft*12ft = 360ft²

The area of the ceiling is:

A'' = 20ft*30ft = 600ft²

We also need to subtract the areas of the two doors and the 4 windows.

Each door is 7ft by 3ft, so the area of each door is:

a = 7ft*3ft = 21ft²

Each window is 4ft by 3ft:

a' = 4ft*3ft = 12ft²

Then the total area that will be painted is:

area = 2A + 2A' + A - 2a - 4a'

area = 2*( 240ft²) + 2*(360ft²) + 600ft² - 2*(21ft²) - 4*(12ft²)

area = 1,710 ft²

We know that we need two coats of paint to cover that area, and the cost per square foot of paint is $0.25, then the total cost is:

C = $0.25*2*(1,710) = $855

The cost to paint the walls and the ceiling is $855

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Related Questions

Identify the center and the radius of a
circle that has a diameter with endpoints at (2, 7)
and (8, 9).

Answers

Using the mid-point concept, we have that:

The center is (5,8).The radius is of 3.16 units.

What is the mid-point concept?

The mid-point between two points is the halfway point between them, and is found using the mean of the coordinates.

The center of the circle is the mid-point of the coordinates of the diameter, hence:

x = (2 + 8)/2 = 5.y = (7 + 9)/2 = 8.

The radius is the distance between the center and the end-points of the diameter, hence, applying the formula for the distance between two points:

[tex]r = \sqrt{(5 - 2)^2 + (8 - 7)^2} = \sqrt{10} = 3.16[/tex]

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A box is to be constructed with a rectangular base and a height of h cm. the length, l, of the box is 10 cm, and the width, w, is twice the height. which quadratic equation best models the volume of the box? v = lwh

Answers

Answer:Answer: We know it has a length of 10 cm, and the width is h times 2.

Step-by-step explanation: So the equation we should write is volume = 10 x (h x 2) x h.

Step-by-step explanation:

Which value of a in the exponential function below would cause the function to shrink? f(x) = a(three-halves) superscript x

Answers

The value of a in the exponential function is 4/5.

Given the exponential function is f(x)=a(3/2)ˣ.

An function may be a mathematical relation of the subsequent form: f(x)=aˣ. where x may be a variable, and a could be a constant called the exponential of the function.

When multiplying the any function by a constant, we may expand or shrink the function in the y-direction.

y=a(b)ˣ

If a>1 then the function will enlarge.

If a<1 then the function will shrink.

When a=4/5

Then 4/5<1 means the function would shrink.

When a=5/4

Then 5/4>1 means the function would enlarge.

When a=3/2

Then 3/2>1 means the function would enlarge.

When a=7/4

Then 7/4>1 means the function would enlarge.

Hence, the given function f(x)=a(3/2)ˣ would shrink when a=4/5.

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Answer:

4/5

Step-by-step explanation:

got it right

please help me I don't understand this

Answers

Answer:

A. perimeter 200

   area         2356

B. Perimeter

C. Area

Step-by-step explanation:

A. Perimeter = 2(base+ height) = 2(62+38)= 200

BASE *HEIGHT (62*38)= 2356

Answer:

(a) Perimeter = 200 inches

    Area 2356 inches squared

(b) Area

(c) Perimeter

Step-by-step explanation:

(a) Perimeter = [tex]2(62+38)=200[/tex] inches

    Area = [tex]38\times62=2356[/tex] inches squared

(b) Area (rectangle)

(c) Perimeter (line)

Please help ill give whoever answers the best the brainliest answer :)))

Answers

Answer:

Step-by-step explanation:

A rational number can be in the form of a whole/natural number, integers, fractions and recurring decimals

In this case, 5 is a whole number, integer (can be a fraction too) , and of course, is a rational number.

As of which options to choose, read the above sentence carefully :)

Answer:

Natural, Integer, Rational, Whole

Step-by-step explanation:

First, we should know the definition of the word choices.

1) Natural Numbers: We can also count it as 'counting numbers'. Natural numbers are numbers that are a whole excluding the number 0. Some examples are 1, 2, 3, 4, 5 ... and so on.

2) Irrationals: They are numbers that cannot be written in a fraction form. Some examples are [tex]\sqrt{2} , \sqrt{3} , \sqrt{4} , \pi ...[/tex] etc.

3) Integers: They are a whole number that can be a negative, positive, or even a zero. Natural numbers are included in integers. Examples are -2, -1, 0, 1, 2, and so on.

4) Rationals: They are numbers that can be expressed in a fraction form, so it is the opposite of 'irrationals'. Examples are -1/2, 1/2, 2/4, 2/1 ... etc.

5) Whole Numbers: They are numbers that aren't a fraction. It can only be a positive number and a zero, so some examples would be 0, 1, 2, 3, 4, 5 ... and so on.

With these in mind, we can now solve the question. The number 5 is a natural, integer, rational, and a whole number.

Just an easy question for 100 Points!
Check my other easy 100 point questions :)

Answers

#1

y=x+5

Shifted 5units left

#2

y=3/8

Horizontally Streched by a factor 8/3 parallel to x axis

#3

y=-x-2

Reflection by y axis as x will be negative and shifting 2 units right

#4

y=6x+1

vertically streched by a factor 6 and shifting 1 units left

#5

y=x-11

Shifting 11 units left

#6

y=8x

Horizontally streched by 1/8 factor

Answer:

1.  Translated 5 units left.

2.  Vertical stretch by a factor of 3/8.

3.  Reflection in the x-axis, then translated 2 units down.

4.  Vertical stretch by a factor of 6, then translated 1 unit up.

5.  Translated 11 units down.

6.  Vertical stretch by a factor of 8.

7.  Vertical stretch by a factor of 1/3, then reflection in the x-axis.

Step-by-step explanation:

Transformations

For a > 0

[tex]f(x+a) \implies f(x) \: \textsf{translated $a$ units left}.[/tex]

[tex]f(x-a) \implies f(x) \: \textsf{translated $a$ units right}.[/tex]

[tex]f(x)+a \implies f(x) \: \textsf{translated $a$ units up}.[/tex]

[tex]f(x)-a \implies f(x) \: \textsf{translated $a$ units down}.[/tex]

[tex]a\:f(x) \implies f(x) \: \textsf{stretched parallel to the $y$-axis (vertically) by a factor of $a$}.[/tex]

[tex]f(ax) \implies f(x) \: \textsf{stretched parallel to the $x$-axis (horizontally) by a factor of $\dfrac{1}{a}$}.[/tex]

[tex]-f(x) \implies f(x) \: \textsf{reflected in the $x$-axis}.[/tex]

[tex]f(-x) \implies f(x) \: \textsf{reflected in the $y$-axis}.[/tex]

Parent function:

[tex]y=x[/tex]

[tex]\textsf{1.} \quad y=x+5[/tex]

Translated 5 units left.

[tex]\textsf{2.} \quad y=\dfrac{3}{8}x[/tex]

Vertical stretch by a factor of 3/8.

[tex]\textsf{3.} \quad y=-x-2[/tex]

Reflection in the x-axis, then translated 2 units down.

[tex]\textsf{4.} \quad y=6x+1[/tex]

Vertical stretch by a factor of 6, then translated 1 unit up.

[tex]\textsf{5.} \quad y=x-11[/tex]

Translated 11 units down.

[tex]\textsf{6.} \quad y=8x[/tex]

Vertical stretch by a factor of 8.

[tex]\textsf{7.} \quad y=-\dfrac{1}{3}x[/tex]

Vertical stretch by a factor of 1/3, then a reflection in the x-axis.

I need the answers for number 9 and 10

Answers

number 9 is yes, they are congruent.

number 10 is no, they are not congruent because x=3, so segment xy=3(3)+5 which is 14 and segment yz=9(3)/2 which is 13.5

One year, there were about 3,000 institutions of higher learning in the U.S. (including junior colleges and community colleges). As part of a continuing study of higher education, the Carnegie Commission took a simple random sample of 400 of these institutions. The average enrollment in the 400 sample schools was 3,700, and the SD was 6,500. The Commission estimates the average enrollment at all 3,000 institutions to be around 3,700; they put a give-or-take number of 325 on this estimate. There were about 600,000 faculty members at institutions of higher learning in the U.S. As part of its study, the Carnegie Commission took a simple random sample of 2,500 of these faculty persons. On the average, these 2,500 sample persons had published 1.7 research papers in the two years prior to the survey, and the SD was 2.3 papers. If possible, find an approximate 95%-confidence interval for the average number of research papers published by all 600,000 faculty members in the two years prior to the survey. If this isn't possible, explain why not.

Answers

Thus an approximate 95% confidence interval for the average enrollment of all 60,000 faculty members in the two years prior to the survey. which implies that the given statement is true.

According to the statement

Average sample =3700

SD sample =6500

Sample size =400

EV average =3700

SE average =325

Population size =3000

The boundaries of the 68% confidence interval are then 1 standard error from the estimated average:

EV average+1⋅SE average ​=3700+1⋅325=3700+325=4025

EV average−1⋅SE average =3700−1⋅325=3700−325=3375

Thus an approximate 95% confidence interval for the average enrollment of all 60,000 faculty members in the two years prior to the survey. which implies that the given statement is true.

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Answer two questions about Equations AAA and BBB:
\begin{aligned} A.&&5x&=3x \\\\ B.&&5&=3 \end{aligned}
A.
B.




5x
5


=3x
=3


1) How can we get Equation BBB from Equation AAA?

Answers

The answers to the question about the equations are as follows:

1) A. Only add to or remove from one side.

2) B. No

1) As can be seen, the equations' left sides vary, while their right sides remain the same.

We must eliminate the difference in order to make them equal.

Formula A: 5x -2 + x = x -4

Formula B. 5x + x = x- 4

Equation B is created by multiplying the left side of equation A by 2.

The available response in this instance is:

A. Only increase or decrease an amount from one side.

2) The answers to the equations will differ since they are not identical.

Answer option:

B. No

The question was incomplete. The complete question was as follows:

Give two answers about Equations A and B:

A. 5x-2+x = x-4

B. 5x+x = x-4

1) From Equation A, how do we derive Equation B?

A. Only increase or decrease an amount from one side.

B. Increase/decrease the same amount on both sides.

C. Use the distributive principle to rewrite one (or both) sides.

D. Rewrite one (or both) sides using similar wording.

2) Are the equations equal in the light of the initial response? Do they share the same solution, in other words?

(1) Yes (2) No

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Answer:

Step-by-step explanation:

Divide x ^ 4 + x - 1 by x - 1

Answers

Answer:

Graph for (x^4+x-1)/(x-1)

Step-by-step explanation:

Graph for (x^4+x-1)/(x-1)

The required, divide is given by [tex]=x^3+x^2+x+2+\frac{1}{x-1}[/tex]

What is fraction of polynomial?

Fraction of polynomial is, in the numerator and in the denominator of a fraction there is polynomial function

[tex]=x^3+\frac{x^3+x-1}{x-1}\\[/tex]

[tex]=x^3+x^2+\frac{x^2+x-1}{x-1}\\[/tex]

[tex]=x^3+x^2+x+\frac{2x-1}{x-1}\\[/tex]

[tex]=x^3+x^2+x+2+\frac{1}{x-1}[/tex]

Thus the required, divide is [tex]=x^3+x^2+x+2+\frac{1}{x-1}[/tex].

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A una excursion van 40 niños acopmañados por 30 adultos.Pasaran la noche en cabañas iguale,pero lod niños y los adultos deben dormir separados.Cuantas menos cabañas ocupen,menos pagaran ¿cuantas cabañas deben ocupar para pagar lo menos posible?¿cuantos dormiran en cada cabaña?

Answers

El número máximo de ocupantes es el máximo común divisor de los dos números, es decir, 10 personas por cabaña. Se debe pagar siete cabañas para minimizar costes.

¿Cuántas cabañas deben ser pagadas por los excursionistas?

En esta pregunta desconocemos la capacidad de cada cabaña, solo conocemos que todas las cabañas tienen el mismo aforo. En consecuencia, puede haber más de una respuesta, aunque con la restricción de que cada cabaña tiene el mismo número de hospedados.

Inicialmente, descomponemos factorialmente los números de adultos y niños:

Niños

40 = 2³ × 5

Adultos

30 = 2 × 3 × 5

El número máximo de ocupantes por cabaña es el máximo común divisor de los dos números, es decir, 2 × 5 = 10. Por tanto, los excursionistas deben pagar siete cabañas para minimizar costes.

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FIND THE AREA - GEOMETRY

Answers

The area of regular hexagon is 166.27688 inch².

What is area?

The area is the amount of space within the perimeter of a 2D shape.

Given:

side = 8 inch

Using

Area of regular hexagon = 3 √3/2 * a²

= 3 √3/2 * 8*8

=96√3

= 166.27688 inch²

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Use AABC to find the value of cos A
(Please use photo provided)

Answers

Answer:

40/41

Step-by-step explanation:

cos = adjacent/hypotenuse

adj = 40, hyp = 41

The answer is 40 over 41

Un grupo de compañeros juegan canicas, cada uno de los 5 jugadores tiene 2 canicas y dicen que estas representan los factores de la descomposición del total de canicas. ¿Cuantas canicas tiene entre todos los jugadores en total?

Answers

Si cada jugador tiene un total de 2 canicas y hay 5 jugadores, se espera que el número total de canicas sea 10.

¿Cómo encontrar el número total de canicas?

Multiplica el número de canicas por el de jugadores:

Número de canicas: 2Número de jugadores: 52 x 5 = 10 canicas.

¿Cómo se puede descomponer este factor?

Este factor se puede descomponer así:

10/ 25 / 51

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Directions: Indicate product of FOIL for the problem:

(x-2)(x+2)Last

ty <33​

Answers

Answer:

x^2 -4

Step-by-step explanation:

(x-2)(x+2)

We want to FOIL

First  x*x = x^2

Outer  x*2 =2x

Inner  -2 *x = -2x

Last  -2*2 = -4

Add them together

x^2+2x-2x-4

Combine like terms

x^2 -4

24. Write the equation of the line that has a slope of -1/5 and a y-intercept of 8 in standard
form. Ax+By=C "Hint: Write the equation in slope-intercept or point slope form first, then
re-write in standard form.

Answers

Answer:

x + 5y = 40

Step-by-step explanation:

the equation of the line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

here m = - [tex]\frac{1}{5}[/tex] and c = 8 , then

y = - [tex]\frac{1}{5}[/tex] x + 8 ( multiply through by 5 to clear the fraction )

5y = - x + 40 ( add x to both sides )

x + 5y = 40 ← in standard form

⊰________________________________________________________⊱

Answer:

See Below.

Step-by-step explanation:

[tex]\large\begin{gathered}\sf{First, \ let's \ write \ the \ equation \ in \ slope-intercept \ form.}\\\sf{ Slope-Intercept \ form \ is \curvearrowright} \\\boxed{y=mx+b}}\\\sf{Substitute \ the \ pieces \ of \ information \ we \ have \curvearrowright\\\sf{ y=-\dfrac{1}{5}x+8}\\\sf{Now, if \ we \ multiply \ the \ entire \ equation \ by \ 5, \ we'll \ have:} \\\sf{5y=-x+40}\\\sf{And \ finally, move \ \bf{x} \ \sf{to \ the \ left \ with \ the \ opposite \ sign: x+5y=40.}\end{gathered} \bigstar \\\bigstar[/tex]

                                   

Done!!

⊱______________________________________________________⊰

[tex]\overbrace{C}\underbrace{A}\overbrace{L}\underbrace{L}\overbrace{I}\underbrace{G}\overbrace{R}\underbrace{A}\overbrace{P}\underbrace{H}\overbrace{Y}[/tex]

Geometry help ??!!??!&&

Answers

Answer:

AB = 14

Step-by-step explanation:

We can add the segments together to find the total

AB + BC = AC

This will allow us to find x

4x+2 + 3x-1 = 22

Combine like terms

7x +1 = 22

Subtract 1 from each side

7x+1-1 = 22-1

7x = 21

Divide by 7

7x/7 = 21/7

x = 3

Now we can find the length of AB

AB = 4x+2 = 4(3)+2 = 12+2 = 14

Writing Exercises
296. Which method do you prefer to use when multiplying two binomials: the Distributive Property, the FOIL method, or the Vertical Method? Why?

Answers

Answer:

kskwnneokjwonannwknwonw

Answer:

Hence we prefer FOIL method when multiplying two binomials.

Step-by-step explanation:

Explanation

We have to explain when multiplying two binomials which method we prefer from Distributive Property, the FOIL method, or the Vertical Method.We prefer the FOIL method because the method is the quickest than the other two methods for multiplying two binomials and requires fewer calculations when finding the product of binomials. it works only for binomial.

Select the correct answer. The graph of function f is shown. An exponential function with vertex at (1, 3) and passes through (minus 2, 10), (8, 2) also intercepts the y-axis at 4 units. Function g is represented by the equation. Which statement correctly compares the two functions?

Answers

The statement which correctly compares the two functions is that: A. they have the same y-intercept and the same end behavior as x approaches ∞.

What is a function?

A function is a mathematical expression which can be used to define and show the relationship that exist between two or more variables in a data set.

By critically observing the graph which models the function f (see attachment), we can logically deduce that the y-intercept is at four (4).

Also, from the table of function g (see attachment), we have:

At x = 0, g(x) = g(0) = 4.

In conclusion, the statement which correctly compares the two functions is that they have the same y-intercept and the same end behavior as x approaches infinity (∞).

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Complete Question:

The graph of function f is shown.

Which statement correctly compares the two functions?

A. They have the same y-intercept and the same end behavior as x approaches ∞.

B. They have different x- and y-intercepts but the same end behavior as x approaches ∞.

C. They have the same x- and y-intercepts.

D. They have the same x-intercept and the same end behavior as x approaches ∞.

How do you solve this?

Answers

It looks like your equations are

7M - 2t = -30

5t - 12M = 115

Solving by substitution

Solve either equation for one variable. For example,

7M - 2t = -30   ⇒   t = (7M + 30)/2

Substitute this into the other equation and solve for M.

5 × (7M + 30)/2 - 12M = 115

5 (7M + 30) - 24M = 230

35M + 150 - 24M = 230

11M = 80

M = 80/11

Now solve for t.

t = (7 × (80/11) + 30)/2

t = (560/11 + 30)/2

t = (890/11)/2

t = 445/11

Solving by elimination

Multiply both equations by an appropriate factor to make the coefficients of one of the variables sum to zero. For example,

7M - 2t = -30   ⇒   -10t + 35M = -150 … (multiply by 5)

5t - 12M = 115   ⇒   10t - 24M = 230 … (multiply by 2)

Now combining the equations eliminates the t terms, and

(-10t + 35M) + (10t - 24M) = -150 + 230

11M = 80

M = 80/11

It follows that

7 × (80/11) - 2t = -30

560/11 - 2t = -30

2t = 890/11

t = 445/11

Which of the following statements are true? Select all that apply.

Answers

To solve a simultaneous equation on a graph, it is important to:

Draw the graph of the two equationsFind the two lines that intersect at a common pointThis common point would then be used to find the solution of the pair of simultaneous equations.

What is a Graph?

This refers to the diagram that is used to show the relationship between variables that are measured along a pair of axes.

Hence, we can see that your question is incomplete so I gave you a general overview to help you get a better understanding of the given concept.

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67 of the 645 parcels are damaged on the journey.
Calculate the percentage of parcels that are damaged.

Answers

67 / 645 x 100% = 10.39% (4sf)

Rebecca bought 15 cupcakes for her birthday party, each cupcake was 3$ plus tax, the total bill was $47.25 how much tax did she pay on each cupcake

Answers

The tax paid by Rebecca on each cupcake was $0.15 or 15 cents, in the buying of 15 cupcakes for $47.25, where the cost of each was $3 plus taxes.

The tax is the amount paid to the government for buying and selling of goods are services.

In the question, we are informed that Rebecca bought 15 cupcakes, where each cupcake cost $3 plus taxes and the total bill to Rebecca was $47.25.

It implies that the cost of 15 cupcakes along with their taxes = $47.25.

Therefore, the cost of 1 cupcake along with its taxes = $47.25/15 = $3.15.

The cost of 1 cupcake is given as $3 plus taxes.

The total cost of 1 cupcake was $3.15.

Thus, the tax on 1 cupcake = $3.15 - $3 = $0.15 = 15 cents.

Thus, The tax paid by Rebecca on each cupcake was $0.15 or 15 cents, in the buying of 15 cupcakes for $47.25, where the cost of each was $3 plus taxes.

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if 1€=1.50 Australian $ how many Australian $ can be made from €40? ​

Answers

solution:

1€=1.50

$x=€40

By using chain rule

1 × x =1.50×40

so,x=60

Hence,60 Australian $ can be exchanged from €1.5

Marcus was going up 10 stairs in his office. Write an absolute value expression for the given statement.
1. -10
2. |10|
3. |-10|
4. ±10

Answers

The answer is |10| absolute value CANT be negative so it is 10

Jackie buys 5 books at $27 each and pays for them with 20 dollar bills. How many $20 bills does she need to pay for all the books?​

Answers

Answer:

7

Step-by-step explanation:

5 x 27 = 135

135 ÷ 20 = 6.75

round up to 7

Point X is the incenter of ΔABC.
Triangle A B C has point X as its incenter. Lines are drawn from the points of the triangle to point X. Lines are drawn from point X to the sides of the triangle to form right angles. Line segments X F, X G, and X E are formed.

If EX = 4z + 1, XF = 2z + 7, and mABC = 44°, find the following measures.

GX =

mABX = °

Answers

The length of GX is 13 and the value of ∠ABX is 22.

We know that the point at which the triangle's three interior angle bisectors converge is known as the incenter. It can be thought of as the intersection of the triangle's internal angle bisectors. Due to the junction point of the central axis being the center of the triangle's inscribed circle, this point will be equally spaced from each of the triangle's sides. The center of a triangle's inscribed circle, which is the biggest circle that can fit inside the triangle, is known as the incenter.

Given that EX = 4z + 1 and  XF = 2z + 7.

Since X is the incentre of this triangle ΔABC, EX = XF = GX.

Now, 4z + 1 = 2z + 7

i.e. 4z - 2z = 7 - 1

i.e. 2z = 6

i.e. z = 6/2 = 3

Then GX = 2 * 3 + 7 = 6 + 7 = 13

Also given that ∠ABC = 44°.

Since X is the incentre of this triangle ΔABC, ∠ABX = ∠CBX

Let ∠ABX = ∠CBX = y

Now y + y = 44

i.e. 2y = 44

i.e y = 44/2 = 22

Then ∠ABX = 22°

Therefore, the length of GX is 13 and the value of ∠ABX is 22°.

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What is the measure in radians for the central angle of a circle whose radius is 8 cm and intercepted arc length is 7.2 cm? Enter your answer as a decimal in the box

Answers

The measure in radians for the central angle of the circle is; 0.9 radians.

What is the angle measure in radians of the central angle?

Since, the length of the arc is given as 7.2cm and it's radius is 8cm.

It follows that the angle measure of the central angle can be evaluated as follows;

7.2 = (A/6.28) × 2× 3.14 × 8

7.2 = 8A

A = 7.2/8

A = 0.9 radians.

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Charlotte is 195 years younger than Rachel. 2 years later, Rachel will be thrice as old as Charlotte. Find their ages after 2 years. (Estimate the age to the nearest whole number).

Answers

Charlotte is 96 years old and Rachel is 292 years old

How to determine their ages?

Let c represent Charlotte's age and r represents Rachels's age

From the question, we have:

c = r - 195

2 years later, we have:

r + 2 = 3(c + 2)

Expand the equation

r + 2 = 3c + 6

Subtract 2 from both sides

r = 3c + 4

Substitute r = 3c + 4 in c = r - 195

c = 3c + 4 - 195

Evaluate the like terms

-2c = -191

Divide by -2

c = 95.5

Approximate

c = 96

Substitute c = 96 in r = 3c + 4

r = 3*96 + 4

Evaluate

r = 292

Hence, Charlotte is 96 years old and Rachel is 292 years old

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Describe the steps you used to solve the equation and
find the amount of Carrie's allowance.
Linear equation:a+a+8=22

Answers

Answer:

Carrie's allowance is 7.

Step-by-step explanation:

Use the equation to find a.

a+a+8=22

First, combine like terms.

2a+8=22

Subtract 8 from both sides.

2a+8-8=22-8

2a=14

Divide 2 from both sides.

2a/2=14/2

a=7

Hope this helps!

If not, I am sorry.

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