X would equal 5. (need more characters)
It has gone through four half-lives of carbon-14 (5730 years<span> x 4 = </span>22920 years<span>)
It is 22920 years old.
Hope this helps!</span>
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HEY MATE THIS IS UR ANSWER
<em>A cliff is a steep and often sheer rock face. If you stand on the edge of a cliff and peer over, you'll be able to see the waves crashing on the rocks below.</em>
HOPE IT HELPS YOU
Invasion of the Soviet Union... seeing how the U.S.S.R. is gone, and has been for years...
