Delos Debt Renegotiations$($A$).$ Delos borrowed euro$80$ million two years ago. The loan$$ agreement, an amortizing$$ loan, was for six years at $8\mathrm{.}628\%$ interest per annum. Delos has successfully completed two years of$$ debt$-$service, but now wishes to renegotiate the terms of the loan with the lender to reduce its annual payments.

a$.$ What were$$ Delos's annual principal and interest payments under the original loan$$ agreement?

b$.$ After two years debt$$ service, how much of the principal is still$$ outstanding?

c$.$ If the loan were restructured to extend another two$$ years, what would be the annual paymentslong dashprincipal and$$ interest? Is this a significant reduction from the original$$ agreement's annual$$ payments?