Three years ago Messy House Painting issued a $20-$year bond with a $$1,000$ maturity value and a $4$ percent coupon rate of interest. Interest is paid semiannually. The bond is currently selling for

$$826.$

a$.$ What is the bond's yield to maturity? Do not round intermediate calculations. Round your answer to one decimal place.

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b$.$ If the bond can be called in four years for a redemption price of $$1,029,$ what is the bond's yield to call? Do not round intermediate calculations. Round your answer to one decimal place.

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