Graph the information presented in the table. use that graph to predict the week that revenue will equal expenses for this small company.
note: revenue and expenses are drawn on the vertical axis and month is on the horizontal axis.

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?