Oh, dude, like, not everyone knows calculus, obviously. It's not like we're all sitting around solving derivatives for fun. But, like, if you want an actual number, I'd say maybe around 5-10% of the world's population knows calculus. But hey, who's counting?
Rough estimates place it around 20% or about 1.5 billion people
The short answer is brown, like central Americans or Indians (from India). But the truth is that no people really have the same skin color, and different members of the same ethnicity have differently colored skin. There are many different shades of "black" people, for example. That, and a red-headed Irish "white" person may be much paler then an Italian "white" person.
As of 2010, 2.5%, or one fortieth (just over 170 million, out of around 6.85 billion).
By 2050, American Hispanics are expected to constitute about 30% of the US population.
In July 2007 it was estimated at 6,602,224,175 === ===
Forty percent of the worlds population have pets at home.
Asia is home to about 55% of the worlds population.
15%
god, and jesus
0-0
About 40 percent
5.2 billion people
It grew by 1.86 billion
Opinion: Calculus is much harder, mostly because of it's complexity. Calculus requires much more formula memorization and ingenuity.
About one billion people - so just under a sixth
1/2 at least of the worlds population
At any time o.7 percent of the world is drunk