Please answer it quickly its exam and please do it right

Question 2 (7 marks) A demand loan of $10 000 is repaid by payments of $5000 in one year, $6000 in four years, and a final payment in six years. Interest on the loan is 10% compounded quarterly during the first year, 8% compounded semi-annually for the next three years, and 7.5 % compounded annually for the remaining years. Determine the nal payment. Question 3 {7 marks) Joanna plans to pay off debt by payments of $ 1600 one year from now, $1800 eighteen months from now, and $2000 thirty months from now. Determine the single payment now that would settle the debt if money is worth 8% compounded quarterly