a stock has a beta of 1.13 and an expected return of 12.1%. a risk free asset currently earns 5%: a) what is the expected return on a portfolio that is equally invested in the 2 assets b) if a portfolio of the 2 assets has a beta of 0.5 what are the portfolio rates? c) if a portfolio of the 2 assets has an expected return of 10%, what is it's beta? d) if a portfolio of the 2 assets has a beta of 2.26, what are the portfolio weights? how do you interpret the weights for the 2 assets in this case? explain. Please provide any equations used