Could use some help on these, thanks

A company just paid an annual dividend of $4.76 on its common stock and increases its dividend by 8.7% annually. What is the cost of equity of the current stock price is $49.22? Enter your answer as a percentage rounded off to two decimal points. Do not enter % in the answer box. The common stock of ABC, Inc. has a beta of 1.11 and a standard deviation of 21.26%. The expected return on the market is 16,37% and the risk-free rate is 3.37%. What is the cost of equity for this firm? Enter your answer as a percentage rounded off to two decimal points .Do not enter % in the answer box. ABC just paid dividends of $5.89 on their common stock. The company expects the growth rate to be 7.9% infinitely. If today's price of the stock is $67.21, what is the dividend yield? Enter your answer as a percentage rounded off to two decimal points. Do not enter % in the answer box