Answer
4
Work Step by Step
$4^{2}$ = 4 x 4 = 16
Basic College Mathematics (9th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0321825535
ISBN 13:
978-0-32182-553-7
Chapter 1 - Whole Numbers - Review Exercises - Page 106: 99
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