Answer
$$15,375\ dollars $$
Work Step by Step
Since she earns 2.5% simple interest for 30 months, the amount of interest she earns is:
$$=(20,500)(1+(.025)(30))-20,500 \\ = 15,375 \ dollars $$
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 6 - Percent - Mixed Review Exercises - Page 468: 25
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