Please!!! show answer and Work!!!

Question

An archeologist found part of the backbone of a wooly mammoth. It contains 32% of its original amount c-14 where k=0.0001 Find the age of the bone. Round to the nearest year. Use formula A=Pe^-kt

Answer 1

0.32 = e^(-0.0001)t

ln 0.32 = -0.0001t

-1.139434283 ≈ -0.0001t

11.39434283 ≈ t