$126 Unfavorable QUESTION 28 BR Company has a contribution margin of 40%. Sales are $312,500, net operating income is $25,000, and average operating assets are $200,000. What is the company's return on investment (ROA)? O 8% O 12.5% 62.5% 64% None of the above QUESTION 29 Click Save and Submit to save and submit. Click Save All Answers to save all answers, Sav RE MacBook Air