A formula is a rule that links variables and can be written using mathematical symbols. Substitute the given values for the length of one side (12) and the number of sides (5). Follow the formula ...

Algebra uses letters to represent unknown values. Unknown values are commonly represented by the letters x and y. There are several principles you need to know to be able to use algebraic notation.

Diagram 1: This diagram shows all squares on the chessboard identified by their coordinates. You would notice along the sides of the board there are letters and numbers. They are used to identify ...