Question

is 7 a rational number? justify.

Answer 1

yes it is a rational number because it can be exprssed in p/q form 7/1. so it is rational.
hope it helps you.

Answer 2

A Rational Number can be made by dividing two integers.
(An integer is a number with no fractional part.)

Example:
is a rational number because 2.5 = 5/2   (5 and 2 are both integers)