Question

What is a variable?

A. A variable is something we always know and is always
represented by a symbol.
B. A variable is something we do not know and we use a letter to
represent it.
C. A variable is the number in front of the letter in an expression.

Answer 1

C. A variable is the number in front of the letter in an expression.

Answer 2

B. A variable is something we do not know and we use a letter to represent it.