8-8. Currently, the risk-free return is 3 percent, and the expected market rate of return is 9 percent. What is the expected return of the following three-stock portfolio? Amount Invested Beta $350,000 250,000 400,000 1.0 8-13 Sharon's portfolio, which is valued at $200,000, contains six stocks and has a beta coefficient equal to 1.5. Later today, Sharon is going to sell one of the stocks in her portfolio for $40,000. After the sale, the portfolio's beta will be 1.3. What is the beta coefficient of the stock that Sharon plans to sell? 8-15. Suppose the risk-free rate of return , is 4 percent, and the market return, is expected to be 12 percent. What is the required rate of return for a stock with a beta coefficient, B e qual to 2.5