Give the density in appropriate units. The land area of a country is about 4.5 million square miles, and the population is about 700 million people. What is the average population density? The average population density is people/mi?. (Simplify your answer. Round to one decimal place as needed.)​

answer: it is a.,b.,d.

step-by-step explanation:

step-by-step explanation:

for exempl this   system of equations   y = x - 3

                                                                y = 2x - 5

look   the line : y = x -3     ( red)

                            the line : y = 2x -5 ( bleus)