You are considering investing $1,000 in a risky portfolio P with an expected rate of return of 10% and a standard deviation of 15% and a T-bill (a risk-free security) with a return of 3%. What percentages of your money must be invested in the T-bill and the risky portfolio P, respectively, to form a complete portfolio with an expected return of 9%? 25%; 75% 33%; 67% 43%; 57% 14%; 86%