The absolute value expression for the given statement is |10|
<h3>What is absolute value?</h3>
The absolute value (or modulus) | x | of a real number x is the non-negative value of x without regard to its sign
Marcus was going up stairs in his office. Therefore, he was ascending .
This means the 10 staircase will be added since there is an increase.
Hence, the absolute value expression for the given statement is as follows:
absolute value = |10|
learn more on absolute value here: brainly.com/question/780403
#SPJ1