Answer:
C) underground
Explanation:
Atmospheric pressure is densest underground.
C underground
as we go under the surface of the earth the atmospheric pressure decreases and vice versa.
(x+5)^2
(x)^2+2*x*5+(5)^2
x^2+10x+25
use formula :(a+b)^2
Russians have a new social class of wealthy business people.
