5. Anguiano Inc. reported the following results from last year's operations: Sales Variable expenses Contribution margin Fixed expenses Net operating income S 10,500,000 8,210,00 2,290,000 1,555,000 735,000 The company's average operating assets were $5,000,000. Last year's return on investment (ROD was: 7.0% 14.7% 45.8% 47.6% a. b. d. The West Division of Cecchetti Corporation had average inco perating assets of $240,000 me of $42,200 in August. The minimum required rate of return for performance