#### Answer

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#### Work Step by Step

RECALL:
The zero-exponent rule states that for any non-zero number $a$,
$a^0=1$
Use the zero-exponent rule where $a=4$ to obtain:
$4^0=1$

Published by
Pearson

ISBN 10:
0-13417-805-X

ISBN 13:
978-0-13417-805-9

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