Josh wants to wallpaper the back wall of his 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?
$1248
tx
o
?

17 feets X 13 Feets = 221 Square feets

221 X $5 = $ 1105

Step-by-step explanation:

the sum of all the angles in a triangle are equal to 180

so you can add   the 3 given angles together to equal 180:

5y + 2y + 2y = 180

or since all three angles have the same letter, combine the 3 angles to equal 180:

9y = 180