At a benefit concert, 15 bands have volunteered to perform but there is only enough time for 5 of the bands to play. How many lineups are possible?

___ lineups

(Simplify your answer. Type an integer or a fraction.)

At a benefit concert, 15 bands have volunteered to perform but there is only enough time for 5 of the bands to play. How many lineups are possible?

___ lineups

(Simplify your answer. Type an integer or a fraction.)