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Which of the choices below defines a variable?
A It is a combination of numbers and variables using fundamental operations. B. Use an equal sign to show that two expressions are equal. C. It is an any letter or symbol that represents a number D. Use of greater sign to show that the two expressions are equal​

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Question;

Which of the choices below defines a variable?

A. It is a combination of numbers and variables using fundamental operations.

B. Use an equal sign to show that two expressions are equal.

C. It is any letter or symbol that represents a number

D. Use of greater sign to show that the two expressions are equal​

Explanation:

  In mathematics, a variable is a symbol and placeholder for a quantity that may change or any mathematical object. In particular, a variable may represent a number, a vector, a matrix, a function, the argument of a function, a set, or an element of a set.

  Since a variable is a number or symbol, the correct answer for this question is LETTER C.

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