Here is your answer i forgot username hope you are seeing this answer

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.

What adds to be the bottom number but also multiplies to be the top number with 8 on the bottom and 15 on top

What is the simplified form of square root of 400 to the 100th power ?