A constant is a value that never changes such as 4, 6.5, 3/4, pi, or the square root of 5.
This is different from a variable where the value varies like x.
In the expression 5x, 5 is a constant and x is a variable.
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A term is a constant number, a variable, or a variable with a coefficient. Terms are separated from each other by addition or subtraction signs. For example, -7x is a term. 3xy is a term. 4b+m is two terms.
Since "pre-" means before, then pre-algebra would be before algebra. Conversely, algebra would be after pre-algebra. Generally, the next class after a pre-algebra class would be Algebra I, followed by Algebra II.
Pre-algebra preps you for algebra.2nd answer:Pre-AP-algebra is the same as Algebra I. Both are way harder than pre- algebra.
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Elementary algebra