assume that you hold a well-diversified portfolio that has an expected return of 14.7% and a beta of 1.22. you are in the process of buying 500 shares of drake corp at $32 a share and adding it to your portfolio. drake has an expected return of 19.5% and a beta of 1.70. the total value of your current portfolio is $80,000. what will the expected return and beta on the portfolio be after the purchase of the drake stock? (expected return; beta)