Question

Can y’all help me out with this

Answer 1

$(a) P= \frac{A}{e^{rt}} (b) e^{rt}= \frac{A}{P} ln e^{rt}= ln(\frac{A}{P}), rt= ln(\frac{A}{P}), t= \frac{ ln(\frac{A}{P})}{r}, or, t= \frac{ lnA - lnP}{r},$