What is the slope of the line x=12

Which point is on the line y=-2+3? (-2,-1) (3,3) (3,-3) (-3,-9)

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.

Find the solution of this system of equation -7x+y=-20 9x-3y=36