Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 7 - Section 7.4 - Applications of Percent - Exercise Set: 27

Answer

31.2 hours can be billed.

Work Step by Step

percent * base = amount $78\%\times 40=b$ $0.78\times40=b$ $31.20=b$
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