Algebra Help exponential?

The population of Seattle, Washington has experienced an exponential growth of 6% per year, depending on the model (T) E ^ = 0.06 200 000 t. If I had 200 000 inhabitants in 2008, how long would it take for the population to reach 700 000? Which equation need to solve this problem? Thank you.

a (t) = e ^ .06 200 000 t. 700 000 200 000 e ^ = 0.06 t. e ^ t = 0.06 = 700000/200000 = 3.5 ln t 0.06t 20.88 years. 2029

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