A new road was added near Riana's neighborhood. The road is 5 miles long, and the city plans 1/10 to place a streetlight every mile. There already is a streetlight at the beginning of the new road. How many streetlights will be placed on the new road? ​

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.