7. Portfolio Expected Return You own a portfolio that has $2,100 invested in Stock A and $3,200 invested in Stock B . If the expected returns on these stocks are 11 percent and 14 percent, respectively, what is the expected return on the portfolio?

8. Portfolio Expected Return You have $10,000 to invest in a stock portfolio. Your choices are Stock X with an expected return of 14 percent and Stock Y with an expected return of 9 percent. If your goal is to create a portfolio with an expected return of 12.9 percent, how much money will you invest in Stock X ? In Stock Y ?