please help i cant figure it out

a and b

thank you

Problem 13-19 Calculating the Cost of Equity Ginger Industries stock has a beta of 1.30. The company just paid a dividend of $.30 and the dividends are expected to grow at 4 percent per year. The expected return on the market is 13 percent, and Treasury bills are yielding 6 percent. The most recent stock price for the company is $77. a. Calculate the cost of equity using the DDM. (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) b. Calculate the cost of equity using the CAPM. (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.)