Awall 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

80 ft2

First we find the area of the wall without the window.

12*8 = 96

Now we find the area of window

4*4 = 16

Now we subtract 

96 - 16 = 80

Ithink you're supposed to multiply 12.50 which is how much he makes per hour and then multiply it by each number then add whats left togrther and there's your answer

How many groups are there?