Question

Can someone help me this is hard

Answer 1

Irrational number are usually those that have square root or Pi.

So, we know that A and C is out, which left us with B and D.
B:

`√(25) = 5`
Therefore, B is a rational number.

D:

`√(0.025) = 0.158113...`
Therefore, D is an irrational number.