can someone please explain?

Suppose you are the money manager of a $5.42 million investment fund. The fund consists of four stocks with the following investments and betas: Stock Investment Beta $ 560,000 1.50 B 800,000 (0.50) 1.160,000 1.25 D 2,900,000 0.75 If the market's required rate of return is 8% and the risk-free rate is 4%, what is the fund's required rate of return? Do not round Intermediate calculations. Round your answer to two decimal places