Answer:
U.S has the least population density (29.115000021357) people per km²
Denmark has the greatest population density (124.723720797585) people per km²
Step-by-step explanation:
Formula:
[tex]\text{Density} =\frac{\text{total population} }{\text{the land area} }[/tex]
=======================================
U.S population density : 272 648 000÷9 364 520 = 29.115000021357
Denmark population density : 5 248 000÷42 077 = 124.723720797585
Ghana population density : 18 339 000÷237 533 = 77.206114518825
Therefore:
U.S has the least population density (29.115000021357)
Denmark has the greatest population density (124.723720797585)