Ann wants to wallpaper the back wall of her bedroom. The wall is in the shape of a rectangle. Its length is 17 feet and its width is 13 feet. Suppose wallpaper costs $5 for each square foot. How much will wallpaper cost for the wall?

the answer is 0.071

good luck! : d

step-by-step explanation:

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.