wallpaper was applied to one rectangular wall of a large room. the dimensions of the wall are shown below. if the total cost of the wallpaper was $771.12 what was the cost in dollars of the wallpaper per square foot?
Hi there! First, we need to find the area of the wallpaper. 42 × 25.5 = 1071 Now, we divide 771.12 by 1071. 771.12 ÷ 1071 = 0.72 So, the wallpaper costs 0.72 dollars per square foot. Hope this helps!