Please solve it clearly and show your work.

3. The Treasury bill rate is 4.3%, and the expected return on the market portfolio is 10.8%. Use the capital asset pricing model. a) What is the risk premium on the market? b) What is the required return on an investment with a beta of 1.3? c) If an investment with a beta of .36 offers an expected return of 8.4%, does it have a positive NPV? d) If the market expects a return of 11.0% from stock X, what is its beta