Answer:
the question is incomplete, since you need an APR rate. I looked for similar question and the effective interest rate was 15%:
Delaney will pay $500,000 / 200 = $2,500 in principal every month.
- His first payment will be = ($500,000 x 15% x 1/12) + $2,500 = $6,250 + $2,500 = $8,750
- His second payment will be = ($497,500 x 15% x 1/12) + $2,500 = $6,218.75 + $2,500 = $8,718.75
- His third payment will be = ($495,000 x 15% x 1/12) + $2,500 = $6,187.50 + $2,500 = $8,687.50