fru purrits) Katie Johnson owns the Sunshine Wellness Clinic. She employs four nurse practitioners and pays each a base rate of $2,000 per month. One of the nurse serves as the manager and receives an extra $1,000 per month. In addition to the base rate, each nurse also receives a commission of $6.50 per patient visit. Other costs are as follows. Advertising Rent Supplies Utilities Magazines $800 per month $2,800 per month $0.30 per visit $375 per month and $0.20 per visit $25 per month Johnson currently charges $20 per visit. a. Determine the variable costs per visit and the total monthly fixed costs. b. Compute the break-even point in units and dollars. c. Determine net income, assuming 2.200 visits occur in a month