A stock has a beta of 0.9 and an expected return of 11 percent A risk-free asset currently earns 3.5 percent a. What is the expected return on a portfollo that is equally invested in the two assets? (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.) b.If a portfolio of the two assets has a beta of 0 29, what are the portfelio weights? (Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal pleces.) c. If a portfolio of the two assets has an expected return of 11.75 percent, what is its beta? (Do not round intermediate calculations. Round your answer to 4 decimal places.) Beta d. If a portfolio of the two assets has a beta of 1.38, 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.)