Simple interest

11.1 Outline

1. Amount of simple interest
   1. interest/interest rate
   2. principal/present value
   3. time
   4. simple interest formula
2. Future value
3. Interest for part of a year
   1. exact interest
   2. ordinary interest
   3. time ordinary interest
   4. future value formula (simple interest)
4. Compounding interest
   1. compound interest
   2. compounding annual