Write each expression another way.

1. 12x 2. 4/y 3. 3xy/2

12*x y÷4 3⋅x⋅y/2

12⋅x y

x(12) 4

12 x X

Explain the difference between variable and a constant.

The different between variable and constant is that, variables are letters that represents a number that can vary in a equation and a constant is a number that can never change.

## Friday, March 13, 2009

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