Answer
c) 18,000
Work Step by Step
Use front end rounding.
$612\approx600$
$29\approx30$
$600\times30=18,000$
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 1 - Section 1.5 - Multiplying Whole Numbers and Area - Exercise Set - Page 49: 55
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