I keep getting 20% as my answer, but it says it's wrong...please help!

Please Help Me Asap I Need Units Too An open-top rectangular box with square base is to be made from 100 square feet of material, as shown.What is the largest possible volume of the box? Do the side lengths 4, 8, and 10 form a triangle? Select the correct answer and reasoning. Question 19 options: A) Yes, because the sum of any two side lengths is greater than the third side length. B) No, because the third side length is greater than the sum of the other two side lengths. C) Yes, because the sum of all three side lengths is greater than 20. D) No, because 4 + 8 is greater than 10. 7(x + 1) -2 =5 (x + 1) +2 What conclusion should be drawn from the graph? Trade has minimal impact on GDP. Trade increased between 1980 and 1990. Trade between nations declined between 1990 and 2000. Trade increases create higher GDP percentage rates. By what percent does the braking distance of a car decrease, when the speed of the car is reduced by 10.3 percent? Braking distance is the distance a car travels from the point when the brakes are applied to when the car comes to a complete stop. (Hint: it's not 10.3%)91.5% is incorrect. Tom changed the rotating speed of his cement mixer from 6 1/3 rpms to 10 rpms . By how many revolutions per minute did the speed of the mixer increase Write an equation for the nth term of the arithmetic sequence 8, 3, -2, -7,... Find the 9th term of the sequence. Danika is 25 years old. She smokes constantly and chews her fingernails. According to Freud's theory, Danika likely is ________ at the _____ psychosexual stage of developmen A wall of a building is 30 inches wide. 14 inches is concrete,10 inches is brick, and 6 inches is like stone. What fraction of the wall is concrete Which of these are examples of advancements made during China's many dynasties? Domestication of oxen and goats Architectural domes and columns Silk and paper making Ziggurats and pyramids Consider the polynomial function h(x)= -7x^6+3x^4-5x^2 A girl ran from her home to a store at the rate of 6 mph, and she walked back home at the rate of 4 mph. if it took 15 minutes for the round trip, how far away is the home from the store? Question 1 of 10Which number sentence below matches this word problem?Jen and Marcus got 15 miles up river before they ran out of gas. They floated9 miles back down river before they reached the shore. How far did they get?A. 1359 = 15B. 15-9=6C. 15-6=9D. 9+15=24 Crane Company took a physical inventory on December 31 and determined that goods costing $199,100 were on hand. Not included in the physical count were $24,470 of goods purchased from Pelzer Corporation, f.o.b. shipping point, and $21,670 of goods sold to Alvarez Company for $30,420, f.o.b. destination. Both the Pelzer purchase and the Alvarez sale were in transit at year-end. What amount should Crane report as its December 31 inventory Annuities where the payments occur at the end of each time period are called _____, whereas _____ refer to annuity streams with payments occurring at the beginning of each time period. Does the parabola open up or down? What would the sign of the second differences be? What are the coordinates of the vertex? What is the equation of the axis of symmetry? What is the optimal value? Is the optimal value considered a max or min? What are the x-intercepts? What is the y-intercept? Y is inversely proportional to the square root of x. If Y = 5 when x = 36, find Y, when x is 16. For full credit: 1. Write a proportion. 2. Solve for y. 3. Show work. Winslow, Inc. stock is currently selling for $40 a share. The stock has a dividend yield of 3.8 percent. How much dividend income will you receive per year if you purchase 500 shares of this stock How are the Declaration of Sentiments and the Declaration of Independence similar?