if you earn an hourly wage of 6.50 dollar your pay is the number of hours you work multiplied by 6.50.
in the table at the right.the variable h stand for the number of hours you worked.A variable is a symbol.usually a letter.that represent one or more numbers.The expression 6.50h is an algebraic expression. An algebraic expression is a mathematical phrase that can include numbers. variable and operation symbols. Algebraic expression are sometimes called variable expressions.