Acme Storage has a market capitalization of $236 million, and debt outstanding of $155 million. Acme plans to maintain this same debt-equity ratio in the future. The firm pays an interest of

7.1% on its debt and has a corporate tax rate of 35%.

a. If Acme's free cash flow is expected to be $23.46 million next year and is expected to grow at a rate of 6% per year, what is Acme's WACC?

b. What is the value of Acme's interest tax shield?

Please answer both questions for a thumbs up.