A disc jockey (DJ) has 12 songs to play. Four are slow songs, and 8 are fast songs. Each song is to be played only once. In how many ways can the DJ play the 12 songs if:
a) the songs can be played in any order?
b) the first song must be a slow song and the last song must be a slow song?
c) the first two songs must be fast songs?
I need some help figuring out!
