Greg practiced playing his clarinet for 12 minutes he has practice 40% of the amount of time he needs to practice today how many more minutes does a Greg need to practice today ​

Relax

Respuesta :

Answer:

18 more minutes.

Step-by-step explanation:

12/40=0.3

0.3*100=30

30-12=18


Greg needs to practice for 18 more minutes