4. An investment center of Cox Corporation shows an operating income of $9,500 on total operating assets of $80,000.

a) What is the Return on Investment (ROI) for Cox Corporation?

b) If the company proposed to achieve 13 percent on ROI, what amount of operating income needed to achieve that result?

5. John Copperline Corporation has a desired rate of return of 9 percent. The company has operating assets of $935,000 that were used to earn $183,000 of operating income. Compute the Residual Income (RI).