stay off if you dont know and if you cant show work.. Which expression represents the difference (6b+9)−(7b−4)? show your work.

Answer:

-b + 13

Step-by-step explanation:

(6b + 9) - (7b - 4)

to get -b you have to subtract 6 by 7

to get 13 you add 9 and 4

i need these asap ill give brainliest

can anyone help me on this?

I need help ASAP!!!!!!!! PLEASE CORRECT ANSWER!
A student writes an incorrect step while checking if the sum of the measures of the two remote interior angles of triangle ABC below is equal to the measure of the exterior angle.

A triangle ABC is shown. The base of the triangle extends into a straight line. The angle formed between this straight line and the edge of the triangle is marked as w. The angle adjacent to w is marked as z, and the other two angles inside the triangle are marked as x and y.
Step 1: m∠x + m∠y + m∠z = 180 degrees (sum of angles of a triangle)
Step 2: m∠w − m∠z = 90 degrees (corresponding angles)
Step 3: Therefore, m∠x + m∠y + m∠z = m∠w + m∠z
Step 4: So, m∠x + m∠y = m∠w

In which step did the student first make a mistake and how can it be corrected? (5 points)

Select one:
a. Step 1; it should be m∠x + m∠y + m∠z = 180 degrees (sum of corresponding angles)
b. Step 2; it should be m∠w + m∠z = 180 degrees (supplementary angles)
c. Step 1; it should be m∠x + m∠y + m∠z = 90 degrees (corresponding angles)
d. Step 2; it should be m∠w + m∠z = 90 degrees (alternate exterior angle)

For which pair of points can you use this number line to find the distance?

A number line going from negative 2 to positive 8. Points are at 1 and 7.

A-(–4, 1) and (7, –4)
B-(–4, 1) and (–4, 7)
C-(–1, –4) and (–4, 7)
D-(–4, –1) and (–4, –7)

Question down below! 15 points and brainliest if you answer the question!

-4 3/8 - (-1 1/4)






oof, i forgot how to do this ;-;

Isabella wants to become a climatologist, a scientist who studies climate change. She knows scientists have used a variety of methods to learn about the changing climate on Earth over time. In what ways do scientists study the history of Earth's climate? Choose the three that apply.

Question options:

by studying green plants


by studying ice cores


by studying shells


by studying fossils


by studying dirt


by studying tree rings

whats 5 + 4/23 x -34 Divide by ten is.....
P.s. i have to show my work sooooooo.....

Help me please. Its my LAST missing assinment!

Help
"It's too short. Write at least 20 characters to get a great answer."

a) The relay race is just over one mile long, approximately "1,760" "1" /"4" yards. If Jack and 4 other people each run a leg of the relay, how many yards will each runner run? Justify your answer using an estimation strategy. (3 points)












The relay was an exciting event! The eighth graders earned 200 points.
b) During the shot put event, Alayna throws the ball 32.45 feet while her teammates throw
28.34 feet, 26.59 feet, and 33.11 feet. Use an estimation strategy to determine about how many total feet were thrown by the team. Describe the estimation strategy you used to solve the problem. (2 points)









If the team threw the shot put more than110 feet, then the seventh graders earn 110 points. If not, then the eighth graders earn 110 points. Which grade should be awarded 110 points?


Step 5: Adding and subtracting with rational numbers
Alex, an eighth grader, and Eric, a seventh grader, need to determine who came closer to their grade’s state record for the triple jump. Alex jumped 39.85 feet and Eric jumped 37 feet and "1" "1" /"4" inches. Who was closer to the state record if the eighth-grade record is 42.25 feet and the seventh-grade record is 39 feet 3 inches? (2 points)









If a seventh grader gets closer to the record-setting jump, then the seventh graders earn 100 points. If not, the eighth graders earn 100 points. Which grade should be awarded 100 points?



Step 6: Using the commutative and associative properties of multiplication to simplify multiplication of two rational numbers

a) The event coordinator asks you to determine how many students participated in the track-and-field day. The total number of students in seventh and eighth grade combined is 584; "5" /"8" of them are seventh graders and "3" /"8" of them are eighth graders. If "4" /"5" of the seventh graders participated in track-and-field day and "7" /"8" of the eighth graders participated, about how many total students participated? Describe the process you used to find your answer. (4 points)









b) Each team earns 1 point for each person who participated in the track-and-field day. Who wins the meet—the eighth graders or the seventh graders? Explain. (2 points)



answer if u know

plsss help me with this mathhhhh!!!!!!!

Please help thanks!

If a cone has a volume of 75.36 cubic feet and a radius of 6 feet, what is the height of the cone? (Use 3.14 for .)

2 feet
3.46 feet
6 feet
4 feet

Help Help Help Help Brainly please... If you were to plan a mission to Mars, what are the key phases that you need to include in your mission?

Ramon earns $1,880 each month and pays $53.20 on electricity. To the nearest tenth of a percent, what percent of Ramon's earnings are spent on electricity each month?

Ramon spends % of his earnings on electricity each month.

A block of clay contains twenty 4 - ounce portions of clay. Ceramics teacher wants to use the block to make as many spheres of clay as possible. Each weighing ⅖ pound. How Many spheres can the class make

A hot air balloon is at elevation of 650 feet. After it descends 120 feet, what is the elevation of the balloon?

r 2x-6+3=6x-5 please help

The number is than because lies on a vertical number line.

At the beginning of the summer, the water level of a pond is 2 feet below its normal level. After an unusually dry summer, the water level of the pond dropped another 1 1/3 feet.
Write an equation to show how far above or below the normal water level the pond is at the end of the summer.
Plz help, math is not my best subject and I'm confused!

Rectangle WXYZ with vertices W(-1,4), X(-1,1), Y(5,1), and Z(5,4). What is the perimeter?
HELP PLEASE I WILL GIVE BRAINLIEST TO BEST ANSWER AND 20 POINTS!!!!

Is this graph proportional or non proportional?
(☞ﾟヮﾟ)☞

in mrs. smiths class every time you turn in assignments you earn 1 homework pass. write 3 equivalent ratios of turned in assignments to homework passes


help please I need it

helppppppppp meeeeeeeeeeeee

*insert chuck and his preggo sister with the gooey stuff coming out of her while the ded baby slides out*


help me with this question.., 1+9

PLEASEEE HELPPPPP
CAN U SEE IF ITS THE RIGHT ANSWER
PLEASEEE HELPPPPP

they do too much with these hard questions

Please look at the screen shot and please help

Answer all parts in the question below. Be sure to show all your work. Remember NO WORK, NO CREDIT EVEN IF THE ANSWER IS CORRECT!!!

13. A car travels 30 ⅕ miles in ⅔ of an hour. What is the average speed, in miles per hour, of the car?

Estimate the percentage: 41 of 122
a. 0.3% c. 43.6%
b. 33.3% d. 3% Explain