a$.$ the maturity is $20$ years?

b$.$ the maturity is $30$ years?

c$.$ the maturity is $50$ years?

d$.$ the maturity is $100$ years?

a$.$ What is the price of the bond using a semiannual convention if the maturity is $20$ years?

$($Round to the nearest cent.$)$

b$.$ What is the price of the bond using a semiannual convention if the maturity is $30$ years?

$($Round to the nearest cent.$)$

c$.$ What is the price of the bond using a semiannual convention if the maturity is $50$ years?

$($Round to the nearest cent.$)$

d$.$ What is the price of the bond using a semiannual convention if the maturity is $100$ years?

$($Round to the nearest cent.$)$