#### Answer

$3(5r-9)$

#### Work Step by Step

Note that:
$15r=5(3)(r)
\\27=3(3)(3)$
Thus, the greatest common factor $3$.
Factor out the GCF to obtain:
$15r-27=3(5r-9)$

Published by
Pearson

ISBN 10:
013421742X

ISBN 13:
978-0-13421-742-0

$3(5r-9)$

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