



 
Hi Hunter, $2.5\%$ is $0.025$ so the increase in population from 1984 to 1985 would be $0.025 \times 2900.$ Hence the population in 1985 would be \[{\bf 2900} + 0.025 \times {\bf 2900} = (1 + 0.025) \times {\bf 2900} = 1.025 \times 2900.\] The increase in population from 1985 to 1986 would then be $0.025 \times (1.025 \times 2900)$ so the population in 1986 would be \[{\bf 1.025 \times 2900} + 0.025 \times {\bf (1.025 \times 2900)} = (1 + 0.025) \times \left[{\bf 1.025 \times 2900}\right] = 1.025 \times {\bf 1.025 \times 2900} = (1.025)^2 \times 2900\] What would be the population in 1987? What would be the population in 2002? Penny  


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