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serenity spa charges $55 for a one-hour massage. they charge $0.75 for each additional minute over an hour. if x represents the number of minutes over one hour, which of the following equations represents the cost of a massage?
a. y = -0.75x + 55
b. y = 0.75x + 55.75
c. y = 55x + 0.75
d. y = 0.75x + 55

Brook states that the distance on the line is 4 units. caleb states that the whole line does not have a distance because it continues on forever. vivian states that the line is 6 units long. which distance did brook measure? which distance did vivian measure?

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.

Which of the functions graphed below has a removable discontinuity?