3x +7x -5 +2x +10 simplified is 12x +5

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?

If the discriminant if a quadratic equation is 4 which statement describes the roots?

Need same math paper but the back now i hope your able to read it cleary i need with hw