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XYZ Company has the following capital structure.

$\backslash$table$[[$Debt$,300000],[$Preferred Stock,$600000],[$Common Stock,$900000],[$Retained Earnings,$1200000]]$

You have the following data, which should be relevant to your task.

Tax rate $=35\%$

The face value of the preferred stock is $100,$ the dividend rate is $9\%$ and the current market price is $90.$

The common stock price is $50$ and the current dividend $(D_0)$ is $3\mathrm{.}5$ which is expected to grow at a rate of $5\%$

The current interest rate is $12\%.$

Based on these data, answer the following questions:

$\backslash$table$[[Q,$The cost of debt $=,],[1,$The cost of preferred stock $=,],[2,$The cost of the common stock $=,],[3,$The cost of retained earnings $=,],[4,$The WACC $=,],[5,,]]$