Answer:
1.
Interest 7.
Amount 107
2.
Interest 30
Amount 280
3.
Interest 82.50
Amount 632.50
4.
Interest 2,050
Amount 7,050
5.
Year 3½
Amount 9,230
6.
Rate 7.74%
Amount 8,950
7.
Principal 12,500
Amount 16,250
8.
Rate 8%
Amount 30,900
