What does d equal in this math problem that i am working on?

Which of the following expressions is equal to 2x^2+8

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?

Given ab and cb are tangents of p, and m =10°. what is the measure of abp?