Williams Software has $11\mathrm{.}2$ percent coupon bonds on the market with $20$ years to maturity. The bonds make semiannual payments and

currently sell for $108\mathrm{.}4$ percent of par.

a$.$ What is the current yield on the bonds?

b$.$ What is the YTM of the bonds?

c$.$ What is the effective annual yield?

Note: For all requirements, do not round intermediate calculations and enter your answers as a percent rounded to $2$ decimal

places, e$.$g$.,32\mathrm{.}16.$