Plz answer this for 10 points

Evaluate the given expression if m=45 |-3m|

Solve the equation - 2(m -30) = -6m a-15 b-13 c-8 d8

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?