2, A stock has a beta of 1.26 and an expected return of 12.4 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? b, If a portfolio of the two assets has a beta of .86, what are the portfolio weights? c, If a portfolio of the two assets has an expected return of 11.6 percent, what is its beta? d, If a portfolio of the two assets has a beta of 2.46, what are the portfolio weights