A mortgage note payable with a fixed interest rate requires the borrower to make installment payments over the term of the loan. Each installment payment includes interest on the unpaid balance of the loan and a payment on the principal. With each installment payment, indicate the effect on the portion allocated to interest expense and the portion allocated to principal.

With each installment payment i'd say that Portion Allocated to Interest  decreases  while Portion Allocated to principal  Increases

Explanation:

the answer would be voluntary exchange -

"the act of buyers and sellers freely and willingly engaging in market transactions. moreover, transactions are made in such a way that both the buyer and the seller are better off after the exchange than before it occurred."

hope this : )

-shy