A table of notes receivable for 2012 follows: Requirement R1. For each of the notes receivable, compute the amount of interest revenue earned during 2012. Use a 360-day year, and round to the nearest dollar. note 1 $40,000 principall-3% interest rate-10 month interest period. note 2 principal 6,000 interest rate 8% with 75 days interest period. note 3 principal 20,000 with 11% interest at 90 days interest period. note4 principal 90,000 interest rate 9% with 5 months interest period