The following market information was gathered for the Teacup Piglets Corporation. Teacup Piglets Corp. has 5,000 shares of preferred stock outstanding, selling for $40 per share, and 50,000 shares of common stock outstanding, selling for $18 per share. The firm has 1,000 bonds outstanding, each selling for $1,100 with a required rate of return of 8%. If the preferred stock has a required rate of return of 10% and the common stock requires a 15% return, and the firm has a corporate tax rate of 30%, calculate the firm's WACC adjusted for taxes