Wallpaper was applied to one rectangle of a small room. 8.5 ft by 9 ft. If the total cost of wallpaper was $45.90, what was the cost, in dollars, of the wall paper in square feet?

the cost of the wallpaper per square feet is $0.6

Step-by-step explanation:

The formula for determining the area of one rectangle of the rectangular room is expressed as

Area = Length × width

Wallpaper was applied to one rectangle of a small room. 8.5 ft by 9 ft. It means that the area on which the wallpaper is applied is

9 × 8.5 = 76.5 square feet

If the total cost of wallpaper was $45.90, it means that the cost of the wallpaper per square feet is

45.9/76.5 = $0.6

69

step-by-step explanation:

$25

step-by-step explanation:

25 - 4.50 = 20.5

20.5 / 2 = 10.25

10.25 + 10 = 20.25

20.25 - 12.50 = 7.75

therefore the answer is $25 as shown as the first number.