Can someone me with my question? you if ya did ; -;

1foot = 12 inches; 1 yard = 3 feet

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?

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?