D&R Corp. has annual revenues of $261,000, an average contribution margin ratio of 34%, and fored expenses of $109.100 Required: a. Management is considering adding a new product to the company's product line. The new item will have $9 of variable conta per unit. Calculate the selling price that will be required in this productie not to affect the average contribution margin ratio (Round your answer to 2 decimal places) selling price per unit b. If the new product adds an additional $32,500 to D&R's forced expenses, how many units of the new product must be sold at the price calculated in part a to break even on the new product? (Done round intermediate calculations.) Break oven units c. If 18.400 units of the new product could be sold at a price of $13.8 per unit, and the company's other business did not change, calculate DSR's total operating income and average contribution margir ratio. (Round your intermediate calculations to 2 decimal places. Round "Average contribution margin ratio" to 2 decimal places.) Total operating income Average contribution margin ratio