please help me solve this problem. i have been struggling quite a bit.

1a. (6 Points). As you know there are two methods financiers use to determine the cost of common equity capital ( rE ) in estimating the WACC: the Capital Asset Pricing Model (CAPM) and the Dividend Discount (Constant Growth) Model. Find the required rate of return for equity investors ( rE) for a firm with a beta of 0.75(=0.75) when the risk free rate ( rRF) is 6% and the return on the market ( rMKT ) is 14%. Please round your answer to the first decimal place