Assume that you manage a risky portfolio with an expected rate of return of 12% and a standard deviation of 39%. The T-bill rate is 6%. Your risky portfolio includes the following investments in the given proportions: Stock A 23% Stock B 32% Stock C 45% Your client decides to invest in your risky portfolio with a proportion (y) of his investment budget with the rest in a T-bill (MMF) money market fund so that the overall portfolio will have an expected return of 9%. What is the proportion y