4.74% DQuestion 2 1 pts Opentech Corporation recently paid a cash dividend of $2.40. Their dividend 12 years ago was $1.30. Currently, their common stock price is $50 per share. If they issue new shares, they will pay flotation costs of $2 per share to the investment bankers. Their corporate tax rate is 21%, what is the firm's cost of external equity? 10.70% 10.30% 10.24% 10.51% 10.0%