Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 1 - Foundations for Algebra - 1-3 Real Numbers and the Number Line - Practice and Problem-Solving Exercises - Page 22: 83

Answer

72

Work Step by Step

This is an order of operations problem. There are parenthesis, so the first operation is addition since 7+1 is inside of the parenthesis. We add 7 plus 1 to get 8, and then we do the final step, multiplication, to obtain: 8$\times$9=72
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