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.
Divide 24 by 6 in order to see how many six second intervals there are. 24/6=4. Multiply 4x5 to show many stories the elevator travels. The answer will be 20 stories.