Exercise 10-1 Compute the Return on Investment (ROI) [LO10-1] of the North Slope oil field in Alyeska Services Company, a division of a major all company, provides various services to the op Alaska. Data conceming the most recent year appear below: Sales Net operating Income Average operating assets $7,500,000 600,000 $ 5,000,000 Required: 1. Compute the margin for Alyeska Services Company 2. Compute the turnover for Alyeska Services Company (Round your answer to 1 decimal place.) 3. Compute the return on investment (ROI) for Alyeska Services Company. (Do not round Intermediate calculations.) % 1. Margin 2. Turnover 3. ROI %6