Answer
10% = 4
15% = 6
20% = 8
Work Step by Step
40.21 x 0.1 = 4.021
40.21 x 0.15 = 6.0315
40.21 x 0.2 = 8.042
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 7 - Section 7.5 - Percent and Problem Solving: Sales Tax, Commission, and Discount - Exercise Set - Page 514: 51
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