#### Answer

c.

#### Work Step by Step

$y = \log_2 x$ means that $y$ is the power to which $2$ is raised to produce $x$, therefore $y = \log_2 x \,\to\, 2^{y} = x $

Published by
Pearson

ISBN 10:
0321726391

ISBN 13:
978-0-32172-639-1

c.

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