The following information is available on bonds:

Type of bond: Equal payment bond $($annuity$)($in point a$).$

Type of bond: With equal installments $($in point c$)$

Nominal value of principal: ISK. $25,000,000$

Loan term $15$ years

Installments and interest paid annually $($every $12$ months$)$

Nominal interest rate of the bond: $9\mathrm{.}0\%($no borrowing fee$)$

a$)$ Show the installment and interest payments along with the total payments for each year for the equalization bond.

b$)$ Use T$-$accounts to describe the bond's transactions in point a$)$ debit and credit at the beginning and at each maturity date, i$.$e$.$ interest, installments and amount to be paid.

c$)$ Answer part a$-$ assuming that it is a bond with equal installments instead of a lump sum bond.

d$)$ Set up graphs that show the payment processes $($free choice of graph type$)$