Rational numbers are natural numbers. always sometimes never

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.

Acar travels at an average speed of 52 miles per hour. how long does it take to travel 299 miles

Atemperature of 1.64◦f corresponds to answer in units of ◦c.