Answer:
82.96 people/km^2
Step-by-step explanation:
people / square km
3.70 x 10^9
----------------- =
4.46 x 10^7
3.70 x 10^2
----------------
4.46
0.8295... x 100 = 82.959641 or rounded 82.96
Lower altitudes have higher climates !
The 4th option would be correct.
{X | - Root 5 < x < Root 5 }
There is no solution because they're parallel