Hi there! The answer is B.
You have enough wallpaper to cover 240 square feet. If your walls are 8 feet high, what wall length can you paper?
First write down our data:
A = 240 square feet
l = 8 feet
Now we can fill in the formula
240 = 8 × w
Switch sides.
8 × w = 240
Divide both sides by 8.
w = 240 / 8 = 30
Therefore the answer is B.
Wall length of 30 feet
