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December 20, 2014

Homework Help: ENVIRO SCIENCE

Posted by RAYMOND on Wednesday, September 2, 2009 at 1:26pm.

1.Between 1950 and 2004, the world population increased exponentially from 2.5 billion to 6.4 billion, what is the percent change?

2.Calculate the percent decrease if there are 620 incoming freshmen and 500 graduated seniors?

percent change: (amount change/initial value ) x 100

I keep on getting 156% and 24% is it right?

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