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A wooden artifact from an ancient tomb contains 55 percent of
the carbon-14 that is present in living trees.

How long ago, to the nearest year, was the artifact made? (The half-life of carbon-14 is 5730 years.)

years

How long ago, to the nearest year, was the artifact made? (The half-life of carbon-14 is 5730 years.)

years

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Box 1: Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)

Enter DNE for Does Not Exist, oo for Infinity