Fantastic Stuff

The Fantastic Stuff Co. currently has debt with a market value of $400 million outstanding.
The debt consists of 10% annual coupon bonds which have a maturity of 10 years and are currently priced at $940 per bond. The par value of each bond is $1,000. The firm also has an issue of 3 million preferred shares outstanding with a market price of $15.00. The preferred shares pay an annual
dividend of $1.65. Fantastic also has 20 million shares of common stock outstanding with a price of $26.00 per share. The firm is expected to pay a $2.60 common dividend one year from today, and that dividend is expected to increase by 6% per year forever. Fantastic is subject to a 40% marginal tax rate.
a. What is the firm’s after tax cost of debt?
b. What is the firm’s cost of preferred stock?
c. What is the firm’s cost of common stock?
d. What is the firm’s weighted average cost of capital?