Question

The owner of a small computer repair business has one employee,
who is paid an hourly rate of $22. The owner estimates his weekly
profit using the function P(x) = 8600 - 22x. In this function, x
represents the number of
(1) computers repaired per week
(2) hours worked per week
(3) customers served per week
(4) days worked per week

Answer 1

In this function, x represents the number of 2) HOURS WORKED PER WEEK.

Profit is net of the fixed income of 8600 and variable cost of 22 hourly rate times the number of hours worked by the employee.

Example:
If the employee worked for 100 hours, then the profit would be:

P(x) = 8600 - 22(100)
P(x) = 8600 - 2200
P(x) = 6400

Even if the employee works 24 hours for the whole week or 7 days, they will still earn profit.

24 hours x 7 days = 168 hours

P(x) = 8600 - 22(168)
P(x) = 8600 - 3696
P(x) = 4904