A normal adult jawbone contains 200 mg of Carbon-14 in a living person. If scientists found 3 jawbones that only had 6.25 mg of Carbon-14, how old is the bone? (The half-life of Carbon-14 is 5730 years) Only enter a number below: Do not enter the unit (which is understood to be 'years"). If you enter a unit or round your answer explicitly (such as "years"), your answer will be counted wrong.