Give the density in appropritate units

Question

Give the density in appropriate units.


The land area of a country is about
3.0
million square? miles, and the population is about
300
million people. What is the average population? density?


The average population density is

?people/mi squaredmi2.

Answer 1

population density = (number of people) / area = (300,000,000 people) / (3,000,000 square miles) = 100 people per square mile