What is 5 divied by 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.

It says factor each expression completely 8y+48

Can someone me with the property questions for 12 13 and 14 plz