You manage a risky portfolio with expected rate of return of 18% and standard deviation of 28%. The T-bill rate is 8%. Suppose your client prefers to invest in your fund a proportion y that maximizes the expected return on the complete portfolio subject to the constraint that the complete portfolio's standard deviation will not exceed 18%. What is the expected rate of return on the complete portfolio? Enter your answer in units of percent, round it to one decimal place, and omit percentage signs (i.e., enter 20.46% as 20.5)