Respuesta :

B and C are irrational numbers. And A and D is a rational number.

Hope this helps :)

Answer: Heres your answer

Step-by-step explanation:

a.) irrational, pi goes on forever

b.) Irrational, 31/sqrt8 = a complicated fraction that goes on forvever

c.) Irrational, sqrt15 is not a perfect square

d.) rational. 1/2 =0.5 which is rational