20. The Case Company produces two types of phone protective cases the plain model and the fancy model. Last year, Case sold 100,000 plain cases and 50,000 fancy cases. Also given: Total fixed costs are $70,000 Plain Fancy Selling price/unit $13.00 $16.00 Variable cost/unit 5.00 7.00 What is the weighted average CM (contribution margin) per unit (using sales mix as the weights)? a $5.33 c$4.33 b. $3.00 d. $8.33 21. Refer to the data in question 20. What is the total break-even point in units (rounded)? a 8,400 c. 2,800 b. 5,600 d. Cannot be determined 22. Refer to the data in question 20. If Case Company sold 75,000 units of each product, then the break- even point in units would: a Increase c. Stay the same b. Decrease d. Cannot be determined