What are two different ways of factoring -3x - 9? Select all that apply. A.-3(x + 3)

B.3(x + 3)

C.3(-x - 3)

D.-3(x - 3)

When only separate discreet points are graphed it is called?

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

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?