QUESTION 20 The firm's fixed costs are $60 000, variable cost per unit is $15 and selling price per unit is $20. The contribution margin per ynit is: o $5 O $15 O $20 O $35 QUESTION 21 The concept of cost volume profit analysis is based on classifying costs as: O fixed and variable costs O variable product and period costs O product controllable and uncontrollable costs. O fixed and variable costs AND variable product and period costs. QUESTION 22 Wenstrom Corporation produces and sells a single product. Data concerning that product appear below $13000 $109,616 The break-even in monthly dollar sales is closest to: Selling price per unit Variable expense per unit. ..$41.60 Fixed expense per month $342,550