Insert three arthimetic means between 4 and 10

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.

Factor the polynomial expression x6 – x3 – 20

2,10,-50 next two numbers geometric sequence