Please need help to understand each step of these.

You receive a 3-year $10,000 loan with an interest rate of 11% p.a., to be repaid in three annual installments. The loan requires that you make two equal total payments of $3,000 at t=1 and t=2, with the remaining loan balance paid at maturity. What is the total payment amount at t=3, rounded to the nearest dollar? QUESTION 2 You receive a 4-year $22,000 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 $5,000 at t=1,$3,000 at t=2, and $1,000 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