Item — sat-dog

? Math · None · None · MCQ

The world's population has grown at an average rate of 1.9 percent per year since 1945. There were approximately 4 billion people in the world in 1975. Which of the following functions represents the world's population P, in billions of people, t years since 1975 ?(1 billion =1,000,000,000)

A
P(t)=4(1.019)^t
B
P(t)=4(1.9)^t
C
P(t)=1.19 t+4
D
P(t)=1.019 t+4

Source: Questions from the AGIEval benchmark's SAT subsets, derived from pre-2016 College Board SAT exams. View the official question bank →

These items follow the pre-2016 paper SAT format and do not reflect the current digital SAT. Useful as a benchmark set, not as current test preparation.