Seven is not an example of a variable. Therefore, the correct answer is an option (C).
It should be noted that a constant is the quantity that has a fixed numerical value. A variable is a letter or symbol whose value may changes."
An expression is a mathematical statement which consists of constant, variable and some mathematical operations.
Therefore, seven is not an example of a variable.
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Seven is not an example of _____. A) an expression B) a term C) a variable D) a constant
