A stock has a beta of 1.10 and an expected return of 12 percent. A risk-free asset currently earns 2.6 percent What is the expected return on a portfolio that is equally invested in the two assets? (Round your answer to 2 decimal places, (e.g., 32.16)) Expected return % If a portfolio of the two assets has a beta of 0.77, what are the portfolio weights? (Round your answer to 4 decimal places, (e.g., 32.1616)) Weight of stock Risk-free weight If a portfolio of the two assets has an expected return of 9 percent, what is its beta? (Do not round intermediate calculations and round your answer to 3 decimal places, (e.g., 32.161)) If a portfolio of the two assets has a beta of 2.20, what are the portfolio weights? (Negative amount should be indicated by a minus sign.) Weight of stock Risk-free weight