Multiple parts, want to check my work. I believe they should all b correct, shakey on 2. Thank you in advance.

Miller Manufacturing has a target debt-equity ratio of 0.60. Its cost of equity is 18 percent and its cost of debt is 10 percent. If the tax rate is 35 percent, what is Miller's WACC? Select the range that includes the correct answer. Less than 13% Greater than or equal to 13%, but less than 14% Greater than or equal to 14%, but less than 15% Greater than or equal to 15%, but less than 16% Greater than or equal to 16% Titan Mining Corporation has 9 million shares of common stock, 0.5 million shares of preferred stock ($100 par and with dividends at 9%), and 120,000 $1,000 face value bonds with an 8.5 percent coupon rate that makes semiannual payments. The common stock currently sells for $34 per share and has a beta of 1.20, the preferred stock currently sells for $83 per share, and the bonds have 15 years to maturity and sell for 93 percent of par. The market risk premium is 10 percent, T-bills are yielding 5 percent, and Titan Mining's tax rate is 35 percent. Calculate Titan Mining's WACC. Choose that range that includes the correct solution. Less than 13% Greater than or equal to 13%, but less than 14% Greater than or equal to 14%, but less than 15% Greater than or equal to 15%, but less than 16% Greater than or equal to 16% Jungle, Inc. has a target debt-equity ratio of 0.80. Its WACC is 10.5 percent, and the tax rate is 35 percent. If Jungle's cost of equity is 15 percent, what is its pretax cost of debt? Select the range that includes the correct solution. Less than 5% Greater than or equal to 5%, but less than 6% Greater than or equal to 6%, but less than 7% Greater than or equal to 7%, but less than 8% O Greater than or equal to 8% True or False. A company borrows additional financing and as a result their weight of debt increases (holding dollars of equity constant). Because the weight of debt increases, the company's WACC will always decrease. True O False