You receive a $18,000 4-year constant payment loan (CPL). The loan's annual interest rate is 7%. What is the principal portion of the total payment in year 4 , rounded to the nearest dollar? QUESTION 4 You receive a $14,0005-year constant amortization loan (CAL). The loan's annual interest rate is 8%. What is the total payment in year 4 , rounded to the nearest dollar? QUESTION 5 You receive a 4-year $11,000 negative amortization loan with an interest rate of 9% p.a., to be repaid in four annual installments. The loan requires that you make total payments of $400 at t=1,$200 at t=2, and $100 at t =3, with the remaining loan balance paid at maturity. What is the total payment amount at t=4, rounded to the nearest dollar