Solve P=P(base 0)e^kt

Question

Solve for t?

I have no idea how to solve this

Answer 1

P = Po e^kt
P/Po = e^kt
kt = ln(P/Po)
t = 1/k ln(P/Po)

Just remember that
e^x and ln(x) are inverse functions, just as
√ and ^2 are inverses

* and / are inverses

+ and - are inverses