please help. trying to leaen practice problems.

A stock has an expected return of 0.12 , its beta is 0.74 , and the expected return on the market is 0.06 . What must the risk-free rate be? (Hint: Use CAPM) Enter the answer in 4 decimals e.g. 0.0123. Question 5 1 pts You own a portfolio equally invested in a risk-free asset and two stocks (If one of the stocks has a beta of 1.59 and the total portfolio is equally as risky as the market, what must the beta be for the other stock in your portfolio? (Hint: Remember that the market has a Beta=1; also remember that equally invested means that each asset has the same weightsince there are 3 assets, each asset's weight is 1/3 or 0.3333. Use 0.333333 , and not only 0.33 , sorry, calculation is sensitive to it). Enter the answer with 4 decimals (e.g. 1.1234) Question 6 1 pts A portfolio has 325 shares of Stock A that sell for $59.14 per share and 234 shares of Stock B that sell for $73.45 per share. What is the portfolio weight of Stock A? Enter the answer in 4 decimals (e.g: 0.3044)