Question

what do you understand by constant and variables​

Answer 1

Answer:

A constant is a data item whose value cannot change during the program's execution. Thus, as its name implies – the value is constant. A variable is a data item whose value can change during the program's execution. Thus, as its name implies – the value can vary.

Explanation:

Hope it will help you

Answer 2

Constants have a fixed value and are usually numbers.

Variables do not have a fixed value and can take any value. They are often denoted with alphabets like x y z.