Respuesta :

Answer:

A

Step-by-step explanation:

An irrational number is one in which it cannot be represented as a fraction.

A) pi - 42.25 cannot be expressed as a fraction

B) 5.2 can be expressed as 26/5

C) 0/3 is already expressed as a fraction

D) 4.37124 can be expressed as 437124/100000