Alan wants to wallpaper the back of his bedroom the wall is in the shape of a rectangle, it's length is 13 feet and it's width is 9 feet, suppose wallpaper cost 7$ for each square foot. How much will wallpaper cost for the wall?
He will have to pay 819 dollars because you have to multiply 9 times 13 which is 117 and it's 7 dollars per square foot so 117 times 7 which is 819 so he will pay for the wall $819 dollars
