Final answer:
The absolute value of -13 is 13, as the absolute value function removes the negative sign and makes the number positive.
Step-by-step explanation:
The absolute value of a number is the non-negative value of that number regardless of its sign. The absolute value function essentially removes any negative sign in front of a number, making it positive. For example, the absolute value of -13 is 13. So, the answer to the absolute value of |-13| is simply 13.