Use the following table of returns from 1926 through 2020 : a. Determine the return on a portfolio that was equally invested in large-company stocks and long-term corporate bonds. 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 return on a portfolio that was equally invested in small stocks and Treasury bills? Note: Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16