Information on Zero Co$.,$ is shown below. Assume the company's tax rate is $23$ percent.

Debt: $16,8005\mathrm{.}9$ percent coupon bonds outstanding, $$1,000$ par value, $25$ years to maturity, selling for $106\mathrm{.}4$ percent of par; the bonds make semiannual payments.

Common stock: $550,000$ shares outstanding, selling for $$81\mathrm{.}75$ per share; beta is $1\mathrm{.}15.$

Preferred stock: $21,500$ shares of $4\mathrm{.}15$ percent preferred stock outstanding, currently selling for $$91\mathrm{.}30$ per share. The par value is $$100.$

Market: $6\mathrm{.}4$ percent market risk premium and $2\mathrm{.}9$ percent risk$-$free rate.

What is the company's WACC?

$2.$ One$-$One Corporation has $6\mathrm{.}4$ million shares of common stock outstanding, $320,000$ shares of $4\mathrm{.}65$ percent preferred stock outstanding, par value of $$100,$ and $73,0005\mathrm{.}6$ percent semiannual bonds outstanding, par value $$2,000$ each. The common stock currently sells for $$74\mathrm{.}25$ per share and has a beta of $1\mathrm{.}14,$ the preferred stock currently sells for $$101\mathrm{.}60$ per share, and the bonds have $23$ years to maturity and sell for $96\mathrm{.}1$ percent of par. The market risk premium is $6\mathrm{.}8$ percent, T$-$bills are yielding $3\mathrm{.}4$ percent, and the firm's tax rate is $25$ percent.

What is the company's WACC?

$3.$ Please see below for Two$-$Two Corporation's information.

Debt: $9,7007\mathrm{.}2$ percent coupon bonds outstanding, with $23$ years to maturity and a quoted price of $105\mathrm{.}75.$ These bonds have a par value of $$1,000$ and pay interest semiannually.

Common stock: $260,000$ shares of common stock selling for $$65\mathrm{.}20$ per share. The stock has a beta of $97$ and will pay a dividend of $$3\mathrm{.}40$ next year. The dividend is expected to grow by $5\mathrm{.}2$ percent per year indefinitely.

Preferred stock: $8,700$ shares of $4\mathrm{.}60$ percent preferred stock selling at $$94\mathrm{.}70$ per share.

Market: $11\mathrm{.}3$ percent expected return, a risk$-$free rate of $3\mathrm{.}95$ percent, and a $22$ percent tax rate.

What is the company's WACC?