Jeff and jemaine go to an indoor ice skating ring. jeff has to rent skates at $3.50 a pair while jermaine has brought her own skates. every hour of skating costs two dollars per person. jeff can spend at most $10 while jermaine can spend most $9. if they combine their money, how many hours could they skate together? show work

Suppose you just purchased a digital music player and have put 8 tracks on it. after listening to them you decide that you like 4 of the songs. with the random feature on your player, each of the 8 songs is played once in random order. find the probability that among the first two songs played (a) you like both of them. would this be unusual? (b) you like neither of them. (c) you like exactly one of them. (d) redo () if a song can be replayed before all 8 songs are played.