Use the following information for questions $4-7$ :

CCC Company wants to sell some $20-$year, annual interest, $$1,000$ par value bond$-$with$-$warrants. Each bond would have $75$ warrants attached to it$,$ each exercisable into one share of stock at an exercise price of $$60.$ The warrants expire in $5$ years. Each warrant is expected to have a market value of $$1\mathrm{.}50.$ The firm's straight bonds YTM is $9\%.$ The company's stock is trading at $$45\mathrm{.}45$ per share. The company's stock is expected to grow at $7\%$ indefinitely. The company's tax rate $=35\%.$

$4.$ What coupon interest rate must the company set on the bonds in order to sell the bonds$-$withwarrants at par?

$5.$ What is the warrants' cost of capital?

$6.$ What is the bond$-$with$-$warrants' cost of capital?

$7.$ What is the bond$-$with$-$warrants' after$-$tax cost of capital?