Answer:
C
That is the clear definition of manifest destiny: a country is meant to be expanded.
100%/x%=108/81
(100/x)*x=(108/81)*x - we multiply both sides of the equation by x
100=1.33333333333*x - we divide both sides of the equation by (1.33333333333) to get x
100/1.33333333333=x
75=x
x=75
Herbert Hoover lost by a narrow margin
Yes, it is true that early humans had to endure changes in climate and environment, since things like global warming and cooling, along with major events like the Little Ice Age, meant that the temperatures in the world were changing dramatically.