5. Douglas is the manager of a $10 million investment fund. The fund consists of five stocks with the following investments and betas: Investment $2,500,000 3,000,000 2,000,000 1,500,000 1,000,000 Beta 0.40 1.45 0.85 2.00 Stock If the risk-free rate is 3.5% and the market's required rate of return is 10.5%, what is the investment fund's required rate of return? (Hint: find the portfolio beta first and then apply the Ca PMformula)