9. Which pair of numbers are not opposites? 72 and -72
27 and -27
7and -7
27 and -27

8

step-by-step explanation:

just put √(2) * √(32) into a calculator. that will make the answer be 8.

whaere is the picture

step-by-step explanation:

i think you would have to divide the money he had saved, which is $2,000 by the time he plans on exercising which is 40 hours, and the answer you get should tell you the answer to your question.