Daisy went to an electronics store and paid $78.99 per gps navigator for five gps navigators and a flat rate fee for installation for a total of $428.45. rebecca went to another electronics store and paid $85.49 per gps navigator for five gps navigators plus a per gps navigator installation fee for a total of $464.35. what is the difference in the amounts they paid in installation charges? a. $3.40 b. $4.40 c. $2.40 d. $5.40

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.