Precalculus - Exponential and Logarithmic Equations Mike Kallenberg deposited some money in a bank account that earns 5.6% interest compounded continuously. How long would it take to double the amount in money in Mr. Kallenberg's account?

$$2P=Pe^{.056t}$$ Dividing by P gets me $$2=e^{.056t}$$ Now to undo the exponent, you take the natural log, ln, of each side... $$\ln{2}=\ln{e^{.056t}}=.056t$$ Can you take it from here?