A construction company signed a loan contract at

7.27%

compounded

semi-annually,

with the provision to pay

$575

at the end of each

month

for

four years.(a) What is amount of the loan?(b) How much will be owed at the end of

nineteen

months?

(c) How much of the principal will be repaid within the first nineteen

months?

(d) How much interest is paid during the first nineteen months?