Answer
a. 6
b. 8
c. 7
Work Step by Step
a. $42\div7=6$ because $6\times7=42$
b. 64/8 is 8 or $\frac{8}{1}$ because $8^{2}$ is 64.
c. 3 into 21 is 7 because $7\times3=21$
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 2 - Cumulative Review - Page 160: 23
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