You've observed the following returns on Pine Computer's stock over the post five years: 8 percent, -12 percent, 14 percent, 21 percent, and 16 percent. The average inflation rate over this period was 31 percent and the average T-bill rate over the period was 41 percent Note: Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g.. 32.16. 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