23) Assume that you manage a risky poru sume that you manage a risky portfolio with an expected rate of return of 18% and a standard deviation of 28%. The T-bill rate is 8%. Your risky portfolio includes the following investments in the given proportions: Stock A 25% Stock B 32% Risley Stock C 43% / D Portfolio Suppose a client decides to invest in your portfolio a proportion y of the total investment budget so that the overall portfolio will have an expected rate of return of 1070. a. What is the proportion y? Show your work!!! Erc) = y[E(rp)] + (1 - y) ( rp) How ? Can you break down 0.16 = y(0.18) + (1 - y)(0.08) y = 0.80 = 80.0% the problem step by step . Thank you b. What are your client's investment proportions in your three stocks and the T-bill fund? Show your work!!! d show the math done ? Please de