Peter Piper has applied for a mortgage of $$124,000.$ Interest is computed at $6\mathrm{.}5$ percent compounded semiannually. The mortgage will be paid off over $20$ years. $($For all requirements, use a Financial calculator to arrive at the answers. Do not round intermediate calculations and Round the final answers to $2$ decimal places.$)$

a$.$ Calculate Peter's monthly payment.

Monthly payment

$

b$.$ Calculate Peter's weekly payment.

Weekly payment

$

c$.$ Calculate Peter's biweekly $($every $2$ nd week$)$ payment.

Biweekly payment $