The Sterling Tire Company's income statement for 20XX is as follows: STERLING TIRE COMPANY Income Statement Year ended December 31, 20XX Sales (40,000 tires at $55 each) Less: Variable costs (40,000 tires $30) $ 2,200,000 1,200,000 Contribution margin Less: Fixed costs 1,000,000 750,000 Earnings before interest and taxes (EBIT) Interest expense 250,000 50,000 Earnings before taxes (EBT) Income tax expense (30%) 200,000 60,000 Earnings after taxes (EAT) $ 140,000 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 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 % c-3. Does financial or operating leverage have the greater impact? O DFL O DOL 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? DFL O 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