Rumolt Motors has $54$ million shares outstanding with a share price of $$27$ per share. In addition, Rumolt has issued

bonds with a total current market value of $$417$ million. Suppose Rumolt's equity cost of capital is $9\%,$ and its debt cost

of capital is $5\%.$

a$.$ What is Rumolt's pre$-$tax WACC?

b$.$ If Rumolt's corporate tax rate is $25\%,$ what is its after$-$tax WACC?

a$.$ What is Rumolt's pre$-$tax WACC?

Rumolt's pre$-$tax WACC is

$\%.($Round to two decimal places.$)$