Q. A number of costs and measures of activity are listed below. 1. 2 3 4 Cost Description Cost of renting production equipment on a monthly basis at a surfboard manufacturer Cost of shipping bags of garden mulch to a retail garden store Building rent at a sandwich shop Cost of hard disk installed in a computer Cost of fresh vegetables used at a sandwich shop Janitorial wages at a surfboard manufacturer Cost of advertising at a surfboard company Clinical supplies at a doctor's office Cost of leasing checkout equipment on a monthly basis at an electronics store Cost of heating an electronics store 5 6 7 8 9 Possible Measure of Activity Surfboards produced Bags shipped Dollar sales Number of computers assembled Dollar sales Surfboards produced Surfboards sold Number of patients Dollar sales Dollar sales 10 Required: For each item above, indicate whether the cost is MAINLY fixed or variable with respect to the possible measure of activity listed next to it