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:
[tex] \sqrt{25} = 5[/tex]
Therefore, B is a rational number.
D:
[tex] \sqrt{0.025} = 0.158113...[/tex]
Therefore, D is an irrational number.
