Problema Solution
the world population was 4.2 billion people in 1982. the population in 1999 reached 6 billion. find the percent of change from 1982 to 1999. round your answer to the nearest tenth of a percent.
Answer provided by our tutors
% change = (6-4.2)/4.2 * 100 = 1.8/4.2 * 100 = 42.86%