The population of a certain country has grown at a rate proportional to the number of people in the country. At present, the country has 60 million nhabitants. Ten years ago it had less 20% of the present population. Assuming that this trend continues, find a. an expression for the approximate number of people living in the country at any time t (taking t = 0 to be the present time) ɔ. the approximate number of people who will inhabit the country at the end of the next ten-year period.

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