Question

how many more people per square mile lived in new mexico in 2000 than in 1990? people per square mile

Explanation:

Step1: Find 1990 and 2000 values for New Mexico

From the bar graph, New Mexico in 1990: 10 people per square mile; in 2000: 15 people per square mile.

Step2: Calculate the difference

Subtract 1990 value from 2000 value: $15 - 10 = 5$

Answer:

5