Answer
$10^{0.50651}=3.21$
Work Step by Step
For $a>0, a\neq 1$, and $x>0,\qquad y=\log_{a}x$ means $a^{y}=x$.
$.................................$
$\log 3.21=\log_{10}3.21=0.50651=4.41763 \qquad$ means the same as
$10^{0.50651}=3.21$.
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