Hi, may someone please help with these problems. And if possible, may you also show me how you work it out.--Thank you.

1) You have been provided with the following data: D₁ = $1.30; P₀ = $42.50; and g = 7.00% (constant). What is the cost of equity from retained earnings based on the constant growth model?

2) You have been provided with the following data: D₁ = $1.30; P₀ = $42.50; and g = 7.00% (constant). What is the cost of equity from retained earnings based on the constant growth model?

3) You have been provided with the following data: D₁ = $1.30; P₀ = $42.50; and g = 7.00% (constant). If your company is going to issue new equity, it will incur an additional 6% flotation costs what is the cost of issuing new equity?