If i ride 3 1/4 miles at 2/5 miles per minute how fast i’m going

Ineeeeed this is due tomorrow and i dont know the answer can you find all the exponents

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?

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