Respuesta :
well if each one was calling them one by one 3 times plus the band director would be 1+3+3+3 SO YOUR ANSWER WOULD BE 10 :)
Well, the answer would be 13. Put it in prime factorization form. Put 3 at the top, then 3 lines from it with the 3, then put 3 more lines from each of those lines with a 3 for each.