Find the following. $($Use the True Annual Interest Rate $($APR$)$ table. Round your answers to the nearest cent.$)$

$\backslash$table$[[\backslash$table$[[$Amount$],[$Financed$]],\backslash$table$[[$Finance$],[$Charge$]],\backslash$table$[[$No$,$ of$],[$Pavments$]],\backslash$table$[[$Payments$],[$Left$]]],[$$$2900,$$$224,12,6]]$

$($a$)$ the refund using the rule of $78$

$

$($b$)$ the refund using the formula

$($c$)$ the payoff using the rule of $78$

$$

$($d$)$ the payoff using the formula

$$787\mathrm{.}23$