The Evanec Company's next expected dividend, D1, is $3.58; its growth rate is 7%; and its common stock now sells for $34.00, New stock (external equity) can be sold to net $28.90 per share. a. What is' Evanec's cost of retained earnings, rs? Do not round intermediate calculations. Round your answer to two decimal places. rs=% b. What is Evanec's percentage flotation cost, F? Round your answer to two decimal places: F= c. What is Evanec's cost of new common stock, re ? Do not round intermediate calculations. Round vour answer to two decimal places. rn=%