Part B with complete formula work please

larett \& Sons' common stock currently trades at $23.00 a share. It is expected to pay an annual dividend of $1.25 a share at the end of the year (D1=$1.25), and the constant growth rate is 4% a year. a. What is the company's cost of common equity if all of its equity comes from retained earnings? Do not round intermediate calculations. Round your answer to two decimal places. % b. If the company issued new stock, it would incur a 13% flotation cost. What would be the cost of equity from new stock? Do not round intermediate calculations. Round your answe to two decimal places