Please answer all please

I. Multiple Choice (3 points each, and total 42 points). For each of the following questions, circle the letter of the best answer. 1. Assuming that the unit sales are unchanged, the total contribution margin will decrease if a. variable expense per unit increases b. variable expense per unit decreases c. fixed expenses increase. d. fixed expenses decrease. 2. Once the break-even point is reached: a. the total contribution margin changes from negative to positive. b. net operating income will increase by the unit contribution margin for each additional item sold. c. variable expenses will remain constant in total. d. the contribution margin ratio begins to decrease. 3. Tribley Inc. has an operating leverage of 8.0. If the company's sales increase by 19%, its net operating income should increase by about: a. 152.0% b. 19.0% c. 8.0% d. cannot be determined from the information given. 4. Under variable costing, fixed manufacturing overhead is a. b. c. d expensed immediately when incurred. never expensed applied directly to finished goods invento treated in the same manner as variable manufacturing overhead. 5. Sea Company reports the followi ng information regarding its production cost. 42,000 units $35 per unit $28 per unit $17 per unit Units produced Direct labor Direct materials Variable manufacturing overhead Fixed manufacturing overhead $105,000 in total Which of the following choices correctly depicts the per-unit cost of products under va costing and absorption costing? a. Variable costing, $63; absorption costing, $80 b. Variable costing, $80; absorption costing, $63. c. Variable costing, $82.5; absorption costing, $80 d. Variable costing, $80; absorption costing, $82.50