Nagel equipment has a beta of 0.88 and an expected dividend growth rate of 4.00% per year. the t-bill rate is 4.00%, and the t-bond rate is 5.25%. the annual return on the stock market during the past 4 years was 10.25%. investors expect the average annual future return on the market to be 14.75%. using the sml, what is the firm's required rate of return? do not round your intermediate calculations.