Question: A quantity P obeys the exponential growth law P(t) = e 5t (t in years). (a) At what time t is P = 10? (b)

A quantity P obeys the exponential growth law P(t) = e^5t (t in years).
(a) At what time t is P = 10?
(b) At what time t is P = 20?
(c) At what time t is P = 40?
(d) How long does it take for P to double?

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