Determine Due Date and Interest on Notes. Determine the due date and the amount of interest due at maturity on the following notes: a. january 5* $93,000 6% 120 days b. february 15* 21,000 4 30 days c. may 19 69,000 8 45 days d. august 20 32,800 5 90 days e. october 19 54,000 7 90 days *assume a non-leap year in which february has 28 days. assume 360 days in a year when computing the interest.