Cheese needs to buy some cardboard to build a box 10 inches long, 9 inches wide, and 7 inches high. If she purchases 500 square inches of cardboard, how much will be left over? (1 point)

Answer 1

First, calculate the surface area of the box:

2(10*9) + 2(10*7) + 2(9*7) = 180 + 140 + 126 = 446 square inches

Now subtract the surface area of the box from the amount of cardboard Cheese purchased:

500 - 446 = 54 square inches

Cheese will have 54 square inches of cardboard left over.