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 - Chapter Review - Page 69: 20

Answer

$81$

Work Step by Step

Since exponents represent repeated multiplication, $9^{2}=9\times9$ $9^{2}=9\times9=81$
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