1.a. You can determine the population several years from now, if you know the initial value in yearly growth rate, by changing the growth rate from a percent to a decimal, and by adding 1 to that decimal. Then you can multiply the initial value by this growth factor as many years in the future as you want to determine the population.
1.b. A growth factor is just the decimal conversion of a growth rate plus 1.
2.a. You can find the population several years from now, if you know the initial value and yearly growth factor, by multiplying the initial value by the yearly growth factor as many times as the number of years from now you want to determine the population.
2.b. You can determine the yearly growth rate by subtracting 1 from the growth factor and converting the value you are left with to a percent.
3. You can find the doubling time for a population from an equation by trying different values for the time variable until the population doubles.
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