2.  Rewriting literal equations  Rewrite and use common formulas

3.  Literal equations: equation that has two or more variables  Formula: shows how one variable is related to one or more other variables

6.  Take out common letter and put in front of ( )  Divide because letter in front of ( ) is multiplication

11.  I = Prt  I = interest  P = principle  r = interest rate as decimal ◦ Move decimal two place to left  t = time in years  You deposit $5000 in an account that earns simple interest. After 6 months, the account earns $162.50 in interest. What is the annual interest rate?