Question

evaluate the following:
a) |-25|

Answer 1

is that it?

Answer 2

The absolute value of zero is zero.
The absolute value of a positive number is just the positive number.
The absolute value of a negative number is just the number with out the sign.
An absolute value is never negative.

Examples:
|0| = 0
|9| = 9
|1.5| = 1.5
|-4| = 4
|-22| = 22