Delilah is saving money for her senior prom. Delilah has $100 that she will invest in a savings account for the next year. The account offers 1.2% interest compounded monthly. How much
money will Delilah have'in the account at the end of this year?

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?