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A complete portfolio includes a risky asset with an expected rate of return of 12% and a standard deviation of 15% and a treasury bill with a rate of return of 5%. a. What is the percentage of your money should be invested in the risky asset to form a complete portfolio with an expected rate of return of 9%? What is the standard deviation of the complete portfolio? b. What is the percentage of your money should be invested in the risky asset to form a complete portfolio with a standard deviation of 12%. What is the expected return of the complete portfolio