If one-half of a number is 8 less than two-thirds of the number, what is the number? how?
1)24
2)32
3)48
4)54

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $36.98. find the probability that a randomly selected bill will have an amount greater than $173, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?