Write the absolute value of

$0$

Write the absolute value of $-125$.

Write the absolute value of 

$-248$

Write the absolute value of 

$a-7,$ if $a$ is greater than $7$

Write the absolute value of 

$a-7,$ if $a-2$ is less than $7$.

Write the absolute value of $a+4,$ if $a$ is greater than $-4$.

Write the absolute value of $a+4,$ if $a$ is less than $-4$.

Write the absolute value of $|-3|$.

Write the absolute value of 

$-\left|-5\right|$