Solve.The amount of paint needed to cover the walls of a room varies jointly as the perimeter of the room and the height of the wall. If a room with a perimeter of 40 feet and 
walls requires 
of paint, find the amount of paint needed to cover the walls of a room with a perimeter of 55 feet and 10-foot walls.
A. 5.5 quarts
B. 11 quarts
C. 55 quarts
D. 550 quarts
Answer: A
Mathematics
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Find the derivative.y =
A. 
B. 
C. 
D. 
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A group of 7 friends are going to a concert. Tickets cost $9 each and they pay an additional $7 per person to upgrade their tickets to the front row. What is the total cost for all of their tickets?
A. $441 B. $122 C. $14 D. $112
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Solve. Round to the nearest percent if necessary.Enrollment in a class at a local college increased from 40 to 72. What was the percent of increase?
A. 32% B. 44% C. 180% D. 80%
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Find an equation that matches the parabola's graph.
A. y = x2 B. y = -x2 C. x = -y2 D. x = y2
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