Y= 2/3x+7
x= -4
PLS HELP ASAP

Which equation represents a proportional relationship that has a constant of proportionality equal to 1/5

How many days was the temperature above 90 degrees?

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?