#### Answer

a) 7 and w
b) x and z
c) 7w
d) xz

#### Work Step by Step

The means are the 2nd and 3rd terms.
The extremes are the 1st and 4th terms.
$7\times w=7w$
$x \times z=xz$

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Published by
Brooks Cole

ISBN 10:
1285199197

ISBN 13:
978-1-28519-919-1

a) 7 and w
b) x and z
c) 7w
d) xz

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