Will has a $25-$year mortgage on a $$120,000$ loan for his house in Florida. The interest rate on the loan is $7\mathrm{.}2\%$ per year $($nominal interest$),$ payable monthly at $0\mathrm{.}6\%$ per month.

a$.$ What is Wills monthly payment?

b$.$ If Will doubles his payment from Part $($a$),$ when will the loan be completely repaid?

a$.$ The monthly payment is $

$($Round to the nearest dollar$)$