A small question in Business Finance, need the answers in 20 minues .

Also assume that the rate of return on a 10-year Treasury Bond is 2.74% and that the expected return on the market portfolio is 5.45% p.a. A) What is the equilibrium rate of return on SABco? Answer: AnswerB) What is the equilibrium rate of return on RMUT Co.? Answer: AnswerC) What is the equilibrium return on a portfolio comprised of a 82% weighting in SABCo and the balance in RMUT Co.?Answer: AnswerD) What is the standard deviation of the portfolio constructed in Part C?Answer: AnswerE) What is the systemic risk of the portfolio constructed in Part C?Answer: Answer