1/3(3j+6) apply the distributave property to create and equivelant expression

The graph represents the gallons of water in a water tank with respect to the number of hours since it was completely filled

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.

Which expression gives you the distance between the points (5,1)and(9,-6)