Is 0.01011011101111011111 rational or irrational?

Which graph represents 2x-5y< 15

What is the quadric regression equation that fits these data

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.