Answer:
24 different possible votes
Step-by-step explanation:
This is a permutation problem. There's a formula: P(n,r)=n!/(n-r)!
Where P is the number of permutations (combinations), n is the number of objects (4 bands, in this case) r is the number of objects taken at a time (1st fav, 2nd fav and 3rd fav=3)
P(4,3)=4!/(4-3)!=4!/1!= 24/1= 24 combinations