Barrock Mining Corporation has $4\mathrm{.}5$ million shares of common stock outstanding and $75,0009\mathrm{.}5\%$ annual

coupon bonds outstanding, par value $$1,000$ each. The common stock currently sells for $$27$ and has a beta

of $1\mathrm{.}3.$ The bonds have $20$ years to maturity and sell for $112\%$ of par. The market risk premium is $8\%,$

Treasury bills yield $3\%,$ and the firm$$s tax rate is $40\%.$

$3.$ What is the weight of equity in the firm?

A$)61\mathrm{.}83\%$

B$)59\mathrm{.}12\%$

C$)38\mathrm{.}17\%$

D$)40\mathrm{.}88\%$

E$)48\mathrm{.}39\%$

$4.$ Pretend this firm is financed with a debt$-$to$-$equity ratio of $1.$ What would be the firm$$s WACC?

A$)10\mathrm{.}54\%$

B$)8\mathrm{.}40\%$

C$)8\mathrm{.}11\%$

D$)11\mathrm{.}38\%$

E$)9\mathrm{.}18\%$

Please dont use excel, show me the formulas and how the numbers came to be

$.$

$$I dont want to see random work. I will make sure to upvote if you do it right.

Answer is B and E respectively if that helps. Thank you