Vin Diesel owns the Fredonia Barber Shop. He employs 4 barbers and pays each a base salary-of $1 , 250 per month. One of the barbers serves as the manager and receives an extra $500 per month. In addition to the base salary, each barber also receives a commission of $4.50 per haircut. Other costs are as follows. Vin currently charges $10.00 per haircut. (a) Determine the unit variable costs per haircut and the total monthly fixed costs. (Round variable costs to 2 decimal places, e.g. 2.25 . ) Total unit variable cost per haircut Vin currently charges $10.00 per haircut. (a) Determine the unit variable costs per haircut and the total monthly fixed costs. (Round variable costs to 2 decimal places, e.g. 2.25.) Total unit variable cost per haircut Total fixed costs.