Question

Solve A = Pe^(rt) for t.

Answer 1

A/P = e^(rt)

ln(A/P) = rt

ln(A/P)/r = t

Answer 2

first we do A/P=e^(rt). then we take the ln of both sides to get ln(a/p)=rt then we just divide by r

Answer 3

we take the ln of both sides so that we can reverse or get rid of the e^. from there it is simple