9. Mohammed Al Harthi owns the Barber Shop. He employs five barbers and pays each a base rate of $2,000 per month. One of the barbers serves as the manager and receives an extra $1,000 per month. In addition to the base rate, each barber also receives a commission of $11.00 per haircut Other costs are as follows. Advertising $400 per month Rent $1,800 per month Barber supplies $0.60 per haircut Magazines $50 per month Utilities $350 per month plus $0.40 per haircut Mohammed currently charges $20 per haircut Instructions (a) Determine the variable cost per haircut and the total monthly fixed costs. (b) Compute the break-even point in units and dollars. (c) Determine net income, assuming 3,800 haircuts are given in a month. (d) Determine the margin of safety with 3,800 haircuts