The Omega Venture Group needs to borrow to finance a project. Repayment of the loan involves payments of $$$$12,340$ at the end of every year for three years. No payments are to be made during the development period of five years. Interest is $5\%$ compounded semi$-$annually.

$($a$)$ How much should the Group$$ borrow?

$($b$)$ What amount will be$$ repaid?

$($c$)$ How much of that amount will be$$ interest?