her property. $($Round your answers to the nearest cent.$)$

$($a$)$ What is Diane's current monthly mortgage payment?

$

$($b$)$ What is Diane's current outstanding principal?

$

$($c$)$ If Diane decides to refinance her propert$-$ by securing a $30-$year home mortgage loan in the amount of the current outstanding principal at the prevailing interest rate of $2\mathrm{.}5\frac{\%}{?}$ year compounded monthly, what will be her monthly mortgage payment?

$

$($d$)$ How much less will Diane's monthly mortgage payment be if she refinances?

$