I need help finding the angle for g. The blue triangle. ASAP

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?

This is so hard and it’s for a test

What term makes it inconsistent y=2x - 4