Gaggle Internet, Inc. is evaluating its cost of capital under alternative financing arrangements. In consultation with investment bankers, Gaggle expects to be able to issue new debt at par with a coupon rate of 8% and to issue new preferred stock with a $2.50 per share dividend at $25 a share. The common stock of Gaggle is currently selling for $20.00 a share. Gaggle expects to pay a dividend of $1.50 per share next year. Market analysts foresee a growth in dividends of 5% per year. Gaggle' marginal tax rate is 35%. a. If Gaggle raises capital using 45% debt, 5% preferred stock, and 50% common stock, what is Gaggle's cost of capital?