An archeologist finds a skull in Piltdown Park in England. He discovers that only 3% of the original amount of carbon-14 is still present in the skull. If the decay constant for carbon-14 is 11105, estimate the age of the skull.

Katy deposits $100 in such a savings account. Find out how much money will be in her account after 6 years, leaving the answer in exponential form.

1. age skull 31600
2. age skull 32000
3. age skull31500
4. age skull31700
5. age skull31800