116 haircuts since 36 times 70 is 2520 and that is the amount of money she earned for perms. So then 4608 subtracted by 2520 is 2088 and 2088 divided by 18 is 116 so that is the answer.
The perimeter of a figure is found by adding the sides of all the figures. The figure has sides 13 and 9. Its height is 4 so each of those sides is about 4 feet. So the perimeter is 13+9+4+4 = 30