If someone solves all of these I will give you brainless what ever it’s called!:)

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 area of the regular hexagon if a side is 20 cm.

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.