You've observed the following returns on Crash-n-Burn Computer's stock over the five years: 16 percent, -16 percent, 18 percent, 28 percent, and 10 percent. Suppose average inflation rate over this period was 2.1 percent and the average T-bill rate o the period was 4.2 percent. a. What was the average real return on the company's stock? (Do not rou intermediate calculations and enter your answer as a percent rounded to 2 decin places, e.g., 32.16.) b. What was the average nominal risk premium on the company's stock? (Do not roun intermediate calculations and enter your answer as a percent rounded to 1 decim place, e.g., 32.1.)