Is 5 a solution to the equation 3x + 1 equals 7

What is the common difference in the following arithmetic sequence? 7,3,-1,-5

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.

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.