Find the product tell which strategy (4x10)x10

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?

Find the greatest common factor of the followig monomials 46g^2h and 34g^6h^6

There are 93 calories in a small candy bar how many calories are ther in a half dozen small candy bars?