Answer
$322$
Work Step by Step
Substituting $s=4$ and $t=8$, the given expression, $
s^4+t^2+s\div2
,$ evaluates to
\begin{array}{l}\require{cancel}
(4)^4+(8)^2+4\div2
\\\\=
256+64+4\div2
\\\\=
256+64+2
\\\\=
320+2
\\\\=
322
.\end{array}
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 1 - Foundations for Algebra - 1-2 Order of Operations and Evaluating Expressions - Practice and Problem-Solving Exercises - Page 13: 26
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