Which expression equals a number that is NOT a rational number?

Step-by-step explanation:

Here we have , following expressions & we need to identify which of the following is not a rational number . Let's find out:

We know that , Rational Number : A number which can be expressed in form of p/q , where q is not equal to zero !

Here Expressions are:

Let's evaluate this expression

⇒

⇒

Therefore , It is a rational number ! .

Let's evaluate this expression

⇒

Therefore , It is a rational number ! .

Let's evaluate this expression

⇒

⇒

Therefore , It is a rational number ! .

Let's evaluate this expression

⇒

⇒

Therefore , It is not a rational number , as pi is included ! .

Last one

Step-by-step explanation:

pi is not a rational number.

3pi × 3³ ÷ 7

81pi/7

It is not rational since 81pi is not an integer

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step-by-step explanation:

7. d. 64

8. i. 32

9. c. 125

10. j. none of the above

11. d. 81

12. i. 216

13. e. none of the above

14. g. 240

15. e. none of the above

16. g. 32

17.   e. none of the above