Question

what is a variable? ​

Answer 1

${\tt{\red{\underline{\underline{\huge{AnswEr}}}}}}$

In mathematics, a variable is a symbol which functions as a placeholder for varying expression or quantities, and is often used to represent an arbitrary element of a set. In addition to numbers, variables are commonly used to represent vectors, matrices and functions.

Answer 2

Answer:

a symbol which may be assigned different numerical value

it is a constant term