I want solution for 3 and 4

The company RL Ltd has a beta of 1.45 expected risk free rate of interest is 2.5% and expected return as a market is 10%. Estimate the expected return? 3- 4. You have decided to invest 40% of your wealth in McDonalds which has an expected return of 15% and 60% of your wealth in GE which has an expected return of 9% and a standard deviation of 14%. Estimate the expected return and coefficient of variation