With a Po of 22.5 div of 2 and a rate of 7 what would be the cost of equity? 40% debt and 60% common equity before tax debt 12%

ke = Cost of equity = D1/P0 + g
from your information I'am not sure about the given div whether it is D0 or D1, but I think div of 2 is already D1, so I don't multiply 2 with 1.07
ke = 2/22.5 + 7% = 15.89%

WACC = (Wd*Kd)+(We*Ke)
WACC = (0.4*kd) + (0.6*15.89%)
We cannot find WACC due to lack of information about kd and tax rate, what is 12% that you give?However, if you have that information, you can complete the calculation of WACC.

The after cost of debt = 12%(1-0.40)= 7.20%

D1 = Do(1+g)= 2(1+7%)= 2.14

The cost of common equity (rs)=(D1/Po)+ g = (2.14/22.50)+ 7% = 16.51%

WAAC = 40%*(7.20%) + 60%*(16.51%) = 12.79%