Answer:
$2240.
Explanation:
Option A.
The option A implies a fixed amount of earning, if she is planning to work 2 days, 8 hours per day, then she will work 16 hours, if they pay $7 per hour. She will earn:

Option B.
The second option is to just earn by commission, a 5% on all money made.
So, the equivalent point would be model by the following expression:

Where
is the total amount of many, now we solve for
:

This means that if during the play they make $2240, Kristin would gain the same no matter what option she takes.
However, if they make less than $2240, then the option A is the best decision.