Answer
23
Work Step by Step
$(-4)(-8)-9=(-4\times-8)-9=32-9=23$
Basic College Mathematics (10th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0134467795
ISBN 13:
978-0-13446-779-5
Chapter 9 - Basic Algebra - Review Exercises - Page 697: 56
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