#### Answer

$34.$

#### Work Step by Step

According to the picture: $n(A\cup B)=20+2+6+1+5+0=34.$

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Published by
Pearson

ISBN 10:
0-32197-907-9

ISBN 13:
978-0-32197-907-0

$34.$

According to the picture: $n(A\cup B)=20+2+6+1+5+0=34.$

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