please solve the following question,

EXERCISE 10-1 Compute the Return on investment (ROI) LO10-1 Aleska Services Company, a division of a major oil company provides various services to the operators of the North Slope oil field in Alaska. Datu concerning the most recent year appear below: Sales Net operating income Average operatingssets. $7,500,000 $600.000 $5,000,000 Required 1. Compute the marrin for Alyes a Services Company 2 Compute the turnover for Alyes a Services Company 3. Compute the return on investment (ROU) for Alyesla Services Company