Answer
\$15
Work Step by Step
Because the cost increases by \$5 for each hour played, adding 3 hours adds \$15 (\$5*3) to the cost.
Microeconomics: Principles, Applications, and Tools (8th Edition)
by O'Sullivan, Arthur; Sheffrin, Steven; Perez, Stephen
Published by
Prentice Hall
ISBN 10:
0-13294-886-9
ISBN 13:
978-0-13294-886-9
Chapter 1 - Appendix - Using Graphs and Percentages - Exercises - Page 26: A.1c
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