An "Algebraic expression" is the correct answer for the above question.
Explanation:
The algebraic expression is an expression that is written in the form of alphabets and numbers. For example x+2x.
And it is also calculated with the consideration of alphabets like X+2X will be 3X.
The above question asked about the expression which is used with the combination of alphabets or variables and the numbers. That expression is known as "Algebraic expression"