Sandhill Diesel owns the Fredonia Barber Shop. He employs 5 barbers and pays each a base rate of $1.490 per month One of the barbers serves as the manager and receives an extra $520 per month. In addition to the base rate, each barber aiso receives a commission of $6.85 per haircut. Other costs are as follows. Sandhili currently charges $15 per haircut. (a) Determine the variable costs per haircut and the total monthly fuxed costs. (Round voriable costs to 2 decimal places, e.3. 2.25.)