Answer
$28$
Work Step by Step
Before multiplying the fractions, cancel common factors first to obtain:
$\require{cancel}
=\dfrac{\cancel{21}^7}{\cancel{25}} \cdot \dfrac{\cancel{100}^4}{\cancel{3}}
\\=\dfrac{7(4)}{1(1)}
\\=\dfrac{28}{1}
\\=28$
College Algebra (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0321979478
ISBN 13:
978-0-32197-947-6
Chapter R - Section R.1 - Real Numbers - R.1 Assess Your Understanding - Page 16: 72
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