You've observed the following returns on Pine Computer's stock over the past five years: -28.2 percent, 15.8 percent, 34.6 percent, 3.4 percent, and 22.4 percent. The average inflation rate over this period was 3.34 percent and the average T-bill rate over the period was 4.3 percent. a. What was the average real risk-free rate over this time period? Note: Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16. b. What was the average real risk premium? Note: Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16