help please... also some please explain how i can tell the difference between rational and irrational??

Answer:
First is irrational, second is rational, third is rational, fourth is irrational and fifth is irrational
Step-by-step explanation:
Rational Number is defined as the number which can be written in a ratio of two integers. An irrational number is a number which cannot be expressed in a ratio of two integers. In rational numbers, both numerator and denominator are whole numbers, where the denominator is not equal to zero.
btw please correct me if i'm wrong