As of October 2009, the world's population is estimated to be 6.8 billion people and the population growth rate is about 0.07 billion people per year. Because the availability of resources is an issue as the population grows, scientists are attempting to compute the maximum population the Earth can support. Assuming the growth rate remains accurate, by which year would the world population hit 9.59.5 billion people? Use an algebraic model to compute the answer.