Martina wants to wallpaper the back wall of her bedroom. The wall is in the shape of a rectangle. Its length is 16 feet, and its width is 8 feet. Suppose wallpaper costs $6 for each square foot. How much will wallpaper cost for the wall?

Answer 1

find the area: length * width
find the cost: $8 times the area

Answer 2

area = 16(8) ft^2 = 128 ft^2

cost = $6(128) or $768

Wow, that is some expensive wall paper.

Answer 3

oh -- was that a 6?
my bad...