Data for Saeed Compagny for a recent month appear below: Costs: Ingredients $7,800 Miscellaneous supplies (napkins, etc.) 1,200 Rent 1.000 Wages for part time employees 3,000 Cart attendant salary 5,000 Total costs 18,000 Part time employees are scheduled for busy times, but are sent home as soon as volumes drop enough to warrant it. Number of units produced - 20,000 units. a. Categorize each cestas fixed or variable. b. Create a cost function