#### Answer

Geometric sequence
$r=2$

#### Work Step by Step

$\dfrac {32}{16}=\dfrac {16}{8}=\dfrac {8}{4}=\dfrac {4}{2}=\dfrac {2}{1}=\dfrac {a_{n+1}}{a_{n}}=2$
So this is geometric sequence with $r=2$

Published by
Pearson

ISBN 10:
013421742X

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

Geometric sequence
$r=2$

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