21. Rick's Hairstyling Salon is an established hair salon, been in the business for over 50 years. The overhead budget for the December month is as follows: 70 clients Activity level Variable overhead costs: Hairstyling Supplies $ 280 420 Laundry Fixed overhead costs: 105 Liability Insurance 3,15 0 Salaries and wages I 2,54 0 Rent 6,40 Total overhead cost The Inn's variable overhead costs are driven by the number of guests. What would be the total budgeted overhead cost for a month if the activity level is 80 guests? a) $7,693.90 b) $8,402.00 c) $6,595.00 d) $7,739.00