Question

4) FRIDAY: An unknown quantity which is represented by a letter or a symbol is called _____

Answer 1

Answer:

A Variable

Step-by-step explanation:

Variables are used to mark an unknown value. Common math problems ask you to solve for it.

For example in 5x+23=45, 'x' is the variable.

A constant is a number without a variable.

Brainilest Appreciated.