Question

A wall is 12 feet long and 8 feet tall. There is a square window 4 feet long in the wall. What is the area of the wall surface?
96 ft2
92 ft2
80 ft2
32 ft2

Answer 1

I guess the question really means "what is the area of the wall AFTER subtracting the area of the painting?"

Answer 2

You just have to subtract the area of the window to the area of the whole thing, then you'll get the wall's area, because the windows isn't a wall.