Question: World population69 is approximately P = 7.32(1.0109) t , with P in billions and t in years since 2015. (a) What is the yearly percent

World population69 is approximately P = 7.32(1.0109)t, with P in billions and t in years since 2015. 

(a) What is the yearly percent rate of growth of the world population? 

(b) What was the world population in 2015? What does this model predict for the world population in 2020? 

(c) Use part (b) to find the projected average rate of change of the world population between 2015 and 2020.

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