A $$99,000$ mortgage is to be amortized by making monthly payments for $15$ years. Interest is $8\mathrm{.}8\%$ compounded semi$-$annually for a six$-$year term. $($a$)($b$)($C$)$Compute the size of the monthly payment.Determine the balance at the end of the six$-$year term.If the mortgage is renewed for a six$-$year term at $3\%$ compounded semi$-$annually, what is the size of the monthly payment for the renewal term?