Answer
a.) $3^x = 5$
b.) $7^2 = 3y$
Work Step by Step
$Express$ $the$ $equation$ $in$ $exponential$ $form:$
a.) $\log_3 5 = x$
b.) $\log_7 (3y) = 2$
Logarithmic form to exponential form: $\log_b a = c \rightarrow b^c = a$
a.) $\log_3 5 = x$
Plug in 3 for b, 5 for a, and $x$ for c
$\log_3 5 = x \rightarrow 3^x = 5$
b.) $\log_7 (3y) = 2$
Plug in 7 for b, 3y for a, and 2 for c
$\log_7 (3y) = 2 \rightarrow 7^2 = 3y$