4. The stock of Martin Industries has a beta of 1.86. The risk-free rate of return is 3.6 percent and the market risk premium is 6 percent. What is the expected rate of return on Martin Industries stock? 5. The common stock of Flavorful Teas has an expected return of 12.4 percent. The return on the market is 10 percent and the risk-free rate of return is 3.5 percent. What is the beta of this stock? 6. The stock of Big Joe's has a beta a 1.4 and an expected return of 8.6 percent. The risk-free rate of return is 3 percent. What is the expected return on the market