This is the number of parents who help in a class on 8 different days.

7, 5, 8, 4, 2, 4, 6, 4

What is the average number of parents that help each day?

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Write a function for a rotation 90 degrees counter clockwise about the origin, point 0

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.

The cost for an uberi is $2.50 plus $2.00 mile. if the total for the uber ride was $32.50, how many miles did the customer travel?