A firm has $$60$ million of common stock, $$40$ million of preferred stock, and $$80$ million of debt. The cost of equity is $8\mathrm{.}5\%,$ the cost of preferred stock is $9\mathrm{.}5\%,$ and the pre$-$tax cost of debt is $7\%.$ If the firm's tax rate is $30\%,$ what is the firm's WACC?

A$)7\mathrm{.}75\%$

B$)8\mathrm{.}06\%$

C$)7\mathrm{.}12\%$

D$)6\mathrm{.}44\%$

E$)8\mathrm{.}33\%$

$6.$ New Flyer Industries has decided to expand its production of hybrid transit buses. The firm expects incremental cash flows of $$8$ million per year for the next $8$ years. The upfront cost of the expansion is $$28$ million, and there are additional flotation costs of $$1\mathrm{.}5$ million. If the New Flyer's WACC is $10\%,$ what is the overall NPV of the project?

A$)$ $$34,500,000$

B$)$ $$14,679,410$

C$)$ $$36,000,000$

D$)$ $$50,500,000$

E$)$ $$13,179,410$