please show formulas and steps

You expect a share of stock to pay dividends of $1.70, $1.95, and $2.20 in each of the next 3 years. You believe the stock will sell for $29.00 at the end of the third year. a. What is the std, ak price if the discount rate for the stock is 20%? (Do not round intermediate calculations. Round your answer to 2 decimal places.) Stock price $ 20.83 b. What is the dividend yield for year 1? (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.) Dividend yield c. What will be the dividend yield at the start of year 2? (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.) Dividend yield %