Where does curve intersect log(6x+10)=log 1/2 x

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?

Can someone me do math because i am having a breakdown rn because i don’t get it

This is about circle theorems. someone asap : (