A stock has a beta of 1.00 and an expected return of 10 percent. A risk-free asset currently earns 2.2 percent. a. What is the expected return on a portfolio that is equally invested in the two assets? (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) Expected return 6.1 % b. If a portfolio of the two assets has a beta of .80, what are the portfolio weights? (Do not round intermediate calculations. Round your answers to 4 decimal places, e.g., 32.1616.) Weight of stock 74.36 Risk-free weight 25.64 c. If a portfolio of the two assets has an expected return of 8 percent, what is its beta? (Do not round intermediate calculations. Round your answer to 3 decimal places, e.g., 32.161.) Beta .8 d. If a portfolio of the two assets has a beta of 2.00, what are the portfolio weights? (Do not round intermediate calculations. Negative amounts should be indicated by a minus sign. Enter your answers as a whole number.) Weight of stock 200 Risk-free weight -100