Hello! answer please?

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?

In the geometric progression –3, 12, −48… what term is 3,072?

Pls brainliest will be awarded if answer is correct