Tiffany owes $28,000 on a car loan. The interest rate on her loan is 3.25 % she will be paying this loan off in 5 years. How much will Tiffany pay all together?

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?