## College Algebra 7th Edition

Published by Brooks Cole

# Chapter 9, Counting and Probability - Section 9.1 - Counting - 9.1 Exercises - Page 658: 71

120

#### Work Step by Step

We are choosing 3 pairs of pants out of a grand total of 10. We plug this into our combination formula. $C(10,3) = 10!/(7!*3!) = 10*9*8/6 = 15*8 = 120$

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