9. The Residual Income (RI) of an investment center is $50,000. The minimum required rate of return of the company is 10%, and average assets are $1,000,000. The Return on Investment (ROI) of the center is: (hint: you first need to find the operating income, and then use that number to calculate ROI) (1 Point) 5% 10% 13.33% 15%