Respuesta :

gabriellek123
I would say the answer is 7, since 21 divided by 3 is 7 and there are 1/3 as many of them

Answer:

7

Step-by-step explanation:

it says that there is 1/3 of tuba players than trumpet players so divide 21 by 3 and you get 7 which is the answer

hope I helped ;)