How do you find the degree of a polynomial

Hi my sisters and brothers can tell me the answer because i don’t understand the question

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?

Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11