The human population doubles approximately every 50 years if there were 2.5 million people in 1950 how many people are forecasted to populate the earth in 2100 future amount = [? ] (1+[ ] ) ^? ( and no wrong answer) !

The equation that would let us determine the number of people or population at a certain year is calculated through the equation,

    A(t) = A(o)(2^(t - 1950)/50)

Substituting the known values,

   A(t) = (2.5 million people)(2^(2100 - 1950)/50))

   A(t) = 20 million 

20 million people