B) A dealer borrowed $ 25,000 on a 150 - days4%simple interest note. He paid $10,000 toward the note on day 30. On day 80 he paid an additional $10,000. Assume 360 days year, what is his ending balance due? B) A dealer borrowed $ 25,000 on a 150 - days4%simple interest note He paid $10,000 toward the note on day 30. On day 80 he paid an additional $10,000. Assume 360-days year, what is his ending balance due