Place the regions in order according to their population densities from least to greatest.

Region C ⇒ Region A ⇒ Region B

Step-by-step explanation:

Density = Number of people / Area of region

The regions are in circles based on the fact we were given the radius and area of circle = π * radius²

Region A Density = 14,200,000 / (3.142 * 13²)

= 26,742 people per square mile

Region B Density = 19,700,000 / (3.142 * 15²)

= 27,866 people per square mile

Region C Density = 23,550,000 / (3.142 * 18²)

= 23,133 people per square mile

Order from least to greatest is:

Region C ⇒ Region A ⇒ Region B

1. 3.4/4

2. 0.8/7

3. 0.5 x 3

4. 0.9 x 6

5. 10.8

6. 2.35

7. 0.567

8. 9.35

9. 0.02

10. 0.06

11. 0.16

12. 0.42

13. 0.63

14. 5.6

15. 8.1

16. 9.9

17. 0.28

18. 0.48

19. 0.27

20. 0.49

21. 0.45

22. 0.72

23. 0.9

24. 0.88

25. 0.75

26. 0.16

27. 0.328

28. 0.495

29. 0.72

30. 1.068

no one knows lol

step-by-step explanation: