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The ratio of men to women working for a company is 4 to 5 . if there are 90 women working for the company, what is the total number of employees?

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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?