Answer:
I'm pretty sure it's 12
Explanation:
If 20% play cello and there are 60 students, you would multiply 60 by .2 (decimal version of 20%). You would then get 12. Another way to check is by multiplying your answer after multiplying by 5 because 20*5=100 ( aka 100%) So, 12*5= 60. I am pretty sure I'm correct.