11. A portfolio is invested 46.5% in Stock A, 24.3% in Stock B, and the remainder in Stock C. The expected returns are 15.5%, 21.7%, and 20.7% respectively. What is the portfolio's expected returns?

12. Suppose a stock had an initial price of $98.57 per share, paid a dividend of $7.9 per share during the year, and had an ending share price of $94.21. What are the dollar returns?

13. Suppose a stock had an initial price of $83.75 per share, paid a dividend of $7.6 per share during the year, and had an ending share price of $102.35. What are the percentage returns if you own 25 shares?

14. You own a portfolio invested 29.9% in Stock A, 19.5% in Stock B, 19.31% in Stock C, and the remainder in Stock D. The beta of these four stocks are 0.63, 0.27, 0.99, and 1.25. What is the portfolio beta?