4. Elsie bought a video game for $85.00. If the store Charges 170% of what it paid for the game, how much is the store's profit?

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?