SAT Math Practice Question #27744 - SATify | SATify

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SAT Math Practice Question #27744 - SATify | SATify

#27744

algebra

logarithms

sequences and series

Change of Base

medium

120 sec

The sequence $lo g_{7} 81, lo g_{7} x, lo g_{7} y, lo g_{7} z, lo g_{7} 16$ is an arithmetic progression. What is $x$ ?

A.

$36$

B.

$48$

C.

$54$

D.

$60$

E.

$72$