**1. How can I remember how to do proofs by induction when each one is so different?**

Although each induction problem is different, they all involve the same basic method. Study the notes and examples carefully and learn the method.

**2. What is the difference between simple interest and compound interest?**

Simpleinterest is calculated over a period of time and paid out and the principal amount remains constant.

Withcompoundinterest the interest generated over each time period is added to the principal amount.

**3. How can I work out simple interest and compound interest?**

There are formulae involving these two types of interest, the variables used include P(the principal), r(the interest rate/ time period) and n(the number of time periods).