The Sterling Tire Companys income statement for 20XX is as follows: STERLING TIRE COMPANY Income Statement Year ended December 31, 20XX Sales (45,000 tires at $60 each) $ 2,700,000 Less: Variable costs (45,000 tires at $45) 2,025,000 Contribution margin 675,000 Less: Fixed costs 600,000 Earnings before interest and taxes (EBIT) 75,000 Interest expense 15,000 Earnings before taxes (EBT) 60,000 Income tax expense (36%) 21,600 Earnings after taxes (EAT) $ 38,400 Given this income statement, compute the following: a. Degree of operating leverage. (Round the final answer to 2 decimal places.) DOL X b. Degree of financial leverage. (Round the final answer to 2 decimal places.) DFL X c-1. Degree of combined leverage. (Do not round the intermediate calculations. Round the final answer to 2 decimal places.) DCL X c-2. Using your answers to a. and b. calculate the percentage increase in EBIT and EBT from a 20 percent increase in sales volume. (Do not round the intermediate calculations. Round the final answers to 2 decimal places.) EBIT % EBT % c-3. Does financial or operating leverage have the greater impact? multiple choice DFL DOL d. Break-even point in units. (Round the final answer to the nearest whole number.) Break-even point tires e. Break-even point considering the interest expense as a fixed cost. Break-even point tires