The Sterling Tire Company's income statement for 201 is as follows: a. Compute the degree of operating leverage. (Round your answer to 2 decimal places.) b. Compute the degree of financial leverage. (Round your answer to 2 decimal places.) c. Compute the degree of combined leverage. (Round your answer to 2 decimal places.) d. Compute the break-even point in units. (Round your answer to the nearest whole number