have now decided to pay the mortgage off by repaying the outstanding balance.

a$.$ What is the payoff amount if you have lived in the house for $13$ years $($so there are $17$ years left on the mortgage$)?$

b$.$ What is the payoff amount if you have lived in the house for $20$ years $($so there are $10$ years left on the mortgage$)?$

the same payment of $$12,000$ per year and an interest rate of $6\%$ per year.

a$.$ What is the payoff amount if you have lived in the house for $13$ years $($so there are $17$ years left on the mortgage$)?$

The payoff amount if there are $17$ years left on the mortgage is $$,($Round to the nearest cent.$)$

b$.$ What is the payoff amount if you have lived in the house for $20$ years $($so there are $10$ years left on the mortgage$)?$

The payoff amount if there are $10$ years left on the mortgage is $$|.($Round to the nearest cent.$)$

the same payment of $$12,000$ per year and an interest rate of $6\%$ per year.

The payoff amount immediately before the $13$th payment is due is $$.($Round to the nearest cent.$)$