Which expression is a factor of x^2-5x-6

a) x-6
b x-2
c x-3
d x-1​

Enter the number of complex zeros for the polynomial function in the box. f(x) = x+ + 5x² +6

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?

How can you tell when x and y are not directly proportional?