Martha painted a 20 foot by 12 foot rectangular wall. What is the area of the wall she painted?

I believe the previous guest was trying to say the wall is 240 square feet

Its a square, so all you gotta do is multiply to two measures in foot= 12*20= 240

Multiplying the width by the height gives you the area of the Rectangular wall 12 ft * 20ft = 240 ft^2