Find each percent of change. round answers to the nearest tenth of a percent is necessary. 76 is decreased to 55
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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?

Find the distance between (0,5) & (-4,2)

Solve the equation: x - 9 = -6 + 5 a. 21 b. 7 c. 14 d. 2