Find the domain and range of each of the following real value functions:
$f(x)=-|x|$

The logarithm form of $10^{-3}=0.001$ is ${\log }_{10}0.001=-m$, then value of $m$ is 

Show that $5^0=1$ can be written as ${\log }_{25}1=0$

If the equation $2^x+4^y=2^y+4^x$ is solved for $y$ in terms of $x$, where $x<0$, then the sum of the solutions will be

The value of ${\log }_{5}125$ is equal to

If $m=\log 20$ and $n=\log 25$, then the value of $x$, so that  $2\log (x-4)=2m-n$ is equal to

Rewrite the following equalities in the exponential form.
$lo{g}_{5\sqrt{5}}5=\frac{2}{3}$

Convert the following to logarithmic form:
$9^0=1$