The ancient fish fossils were dated using c-14. if 1/16 the original amount of c-14 remains in the skeletons, approximately how old are the fish?

The half life of radiocarbon 14 is equal to 5730 years. From this data, we can calculate for the value of k in the equation:

An = Ao e^-kt

ln1/2 = - k (5730)

k = 1.21x10^-4

ln 1/16 = - (1.21x10^-4) t

t = 22914 years old