A 4.30 percent coupon municipal bond has 15 years left to maturity and has a price quote of 97.85. The bond can be called in four years. The call premium is one year of coupon payments. (Assume interest payments are semiannual and a par value of $5,000.)

a) Compute the bonds current yield.

b) Compute the yield to maturity.

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

d) Compute the yield to call.

Round your final answer to two decimal places.