Determine the interest on the following notes: (Round answers to 2 decimal places, es. 52.75. Use 360 days for calculation.) (a) $2,200 at 6% for 90 days. (b) $1,320 at 9% for 5 months. $ (c) $3,300 at 8% for 60 days. $ (d) $1,950 at 7% for 6 months