Inside Out, Company designs custom showroom spaces in interior design marts across the country. The following data pertain to a recent reporting period. Design Department: Client consultation 750 contact hours $127,500 Drawing 1,200 design hours $96,000 Models 15,000 square feet $21,000 Project Management: Supervision 225 days $40,500 Billings 150 jobs $54,000 Required: a) Use Activity-based Costing to compute overhead rates for each activity. Show all details of calculations. b) Assign costs to a 3,000 square-foot job that requires 70 contact hours, 20 design hours, and 14 days to complete. Show all details of calculations