19.4 < click all numbers that make the comparison true

19.5
19.401
19.06
19.008
19.18
19.3

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 this system of equations. 12x − 18y = 27 4x − 6y = 10

Asap! i'm not good math and i'm lost.