6.4 a. You own a portfolio that has $500 invested in Stock A and S1,600 invested in Stock B. If the expected returns on these stocks are 12 percent and 18 percent, respectively, what is the expected return on the portfolio? 2 b. You have $10,000 to invest in a stock portfolio. Your choices are Stock X with an expected return of 16 percent and Stock Y with an expected return of 11 percent. If your goal is to create a portfolio with an expected return of 14.80 percent, how much money will you invest in Stock X? In Stock Y