How many telephone numbers are there in the 509 area code? telephone numbers may not start with the number 0 or 1. they also must not begin with 911 or 555. do not consider other special circumstances.

Which of the following represents the zeros of f(x) = 6x3 − 31x2 + 4x + 5? −5, one third , one half 5, − one third , one half 5, one third , − one half 5, one third , one half

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?

What is the greater volume 72 quarts or 23 gallons