Evaluate the given logarithm.
${\log }_y\sqrt{y}$

Evaluate the given logarithmic expression.

$lo{g}_{2}128$

Evaluate the given logarithmic expression.

$lo{g}_5\left(\frac{1}{125}\right)$

Evaluate the given logarithmic expression.

$lo{g}_{10}0.1$

Evaluate the given expression.

$5^{{\log }_{5}12}$

Evaluate the given logarithm.

${\log }_{x}1$

Rewrite the exponential equation as a logarithmic equation.

$3^x=9$

Rewrite the exponential equation as a logarithmic equation.

$6^{-3}=\frac{1}{216}$

Rewrite the exponential equation as a logarithmic equation.

$2^y=3.249$