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Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

In which form is the following function written? y = - 2(x – 3)(x + 5)

The radius of the sphere is 10 units .what is the approximate volume of the sphere use π=3.14