23 POINTS AND WILL GIVE BRAINLIEST

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

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?

Atemperature of 1.64◦f corresponds to answer in units of ◦c.