Please help me!
[One Step Inequalities]

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

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?