If a sample known to be about 10,740 years old has 400 carbon-14 atoms how many atoms were in the…

If a sample known to be about 10,740 years old has 400 carbon-14 atoms how many atoms were in the…

If a sample known to be about 10,740 years old has 400 carbon-14 atoms how many atoms were in the smaple when the organism die?