R&R Tax Service offers tax and consulting services to individuals and small businesses. Data for fees and c returns follow. R&R provides services in the ratio of 5:3 2 (easy, moderate, business) Fixed costs total $18,0 Variable Cost per Return Fee Charged Type of Returr Easy (form 1040EZ) 50 Moderate (form 1040 125 Business $ 30 75 100 275 (1) Determine the selling price per composite unit Ratio Fee Charged Total per composite unit 5 Easy (form 1040EZ) Moderate (form 1040) Business 2 (2) Determine the variable costs per composite unit