I am trying to solve this problem and can't seem to get the right answer:
The population at time t is given by the equation below:
S(t)= ce^kt

Find a formula that gives the time it takes for the population to quadruple. (This problem deals with functions of the form f(x)=Pe^kx, where k is the continuous exponential growth rate.)

Any help would be appreciated!

S(0) = c. Therefore substitute S = 4c into and solve for t.

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