Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10: 0134467795
ISBN 13: 978-0-13446-779-5

Chapter 1 - Whole Numbers - Review Exercises - Page 104: 34

Answer

81

Work Step by Step

9 * 9 = 9 + 9 + 9 + 9 + 9 + 9 + 9 + 9 + 9 = 81
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