Respuesta :

Answer:

18 students are not interested in mathematics.

Answer:

12 students

Step-by-step explanation:

If 60% are interested, then we are led to assume 40% are not.  (Although we don't know if the remaining 40% even filled out a response to the question, we'll make the assumption their response was "go fish.")

40% of 30 students is:

0.30*(30) = 12 students