Use the Factor Theorem to determine which of the following is NOT one of the factors of 4x^4 - 21x^3 -22x^2 + 117x + 90. A. x-3
B. x-5
C. x-2

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?

What is coefficient of the term of degree of degree 5 in the polynomial below

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?