What is the percent increase from 5 miles to 15 miles

Explain how you do each step what term makes it inconsistent y=2x - 4 ?

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?

Which table represents a linear function? i'll give brainliest to first answer ^'^