help find intrest

Determine the due date and the amount of interest due at maturity on the following notes: Date of Note Face Amount Interest Rate Term of Note 6% 120 days a. January 5* $90,000 21,000 4 b. February 15 - 30 days 45 days 8 c. May 19 68,000 34,400 in 90 days d. August 20 90 days e. 50,000 October 19 Assume a leap year in which February has 29 days. Assume 360 days in a year when computing the interest. Interest Due Date