A stock has a beta of 6 and an expected return of 10 percent A risk-free asset currently earns 4.1 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.) Expected return b. If a portfolio of the two assets has a beta of.57, what are the portfolio weights? (Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places.) Stock Risk-free asset Portfolio Weight % % c. If a portfolio of the two assets has an expected return of 8.25 percent, what is its beta? (Do not round intermediate calculations. Round your answer to 4 decimal places.) Beta d. Ito portfolio of the two ossets has a beta of 1.10, what are the portfolio weights? (A negative value should be indicated by a minus sign. Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places.) . Portfolio Weight % Stock Risk-free asset