Answer
2.11
Work Step by Step
We first find the overall cost:
$$ = (16.5)(.65) + (3)(.72) \\ = 12.89$$
Since he pays 15 dollars, the amount of change he gets is:
$$ =15-12.89 \\ =2.11$$
Basic College Mathematics (10th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0134467795
ISBN 13:
978-0-13446-779-5
Chapter 4 - Decimals - 4.4 Multiplying Decimal Numbers - 4.4 Exercises - Page 295: 53
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