#### Answer

$\{a,b,c,d,e,f,g\}$

#### Work Step by Step

The union ($\cup$) of two sets is the set combining the elements in the two sets. Hence, the union of $\{a,b,c,d\}$ and $\{a,c,e,f,g\}$ is $
\{a,b,c,d,e,f,g\}
.$

Published by
Pearson

ISBN 10:
0-32184-874-8

ISBN 13:
978-0-32184-874-1

$\{a,b,c,d,e,f,g\}$

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