"X to the first power would just be

How are algebraic expressions evaluated using substitution?

Aa at 9 a.m. it at 4 p.m. he a of $28.84.?

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?