Precalculus (10th Edition)

Published by Pearson
ISBN 10: 0-32197-907-9
ISBN 13: 978-0-32197-907-0

Chapter 13 - Counting and Probability - Chapter Review - Review Exercises - Page 868: 9

Answer

$7$

Work Step by Step

According to the picture: $n(B-C)=2+5+6+0-(6+0)=7.$
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