A $4\mathrm{.}00$ percent coupon municipal bond has $12$ years left to maturity and has a price quote of $95\mathrm{.}55.$ The bond can be called in four years. The call premium is one year of coupon payments. $($Assume interest payments are semiannual and it has a par value of $$5,000.)$

Compute the bond$$s current yield.

Compute the yield to maturity.

Compute the taxable equivalent yield $($for an investor in the $30$ percent marginal tax bracket$).$

Compute the yield to call.