Hi guys i'll give 50 points what is 1+1 hurry

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?

It says factor each expression 49x-28?

Which number line represents the solution set for the inequality -1/2x> 24?