A few years down the road you move out, buying your own home. You decide to take another look

at your finances. Your outstanding loan of $$445$ per month only has $10$ payments left on it $($out of

the original $60)$ with an interest rate of $11\mathrm{.}25\%.$

$3$a$.$ What is the finance charge $$f$?(10$ points$)$

$3$b$.$ What is the unearned interest $$u$?(10$ points$)$

$3$c$.$ How much would it cost to pay it off on payment #$51?(10$ points$)$