A five-year loan of $25,000 at 7.2% compounded quarterly requires quarterly payments. a. Calculate the interest component

Question:

A five-year loan of $25,000 at 7.2% compounded quarterly requires quarterly payments.
a. Calculate the interest component of Payment 10.
b. Calculate the principal component of Payment 13.
c. Calculate the total interest in Payments 5 to 10 inclusive.
d. Calculate the principal paid in Year 4.