The charcoal from a tree killed in the volcanic eruption that formed a crater contained 31.5% of the carbon-14 found in living matter. If the half-life of carbon-14 is 5730 years, about how old is the crater?

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Q: 10

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Q: dx 0 4-x

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Q: 14.

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Q: 8 14

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Q: %3D 6.

A: Please see the explanation below

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Q: 7. 45

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Q: 4. 215 415

A:

Q: 7.2-2

A: Given:   x y 644 623 493 472 532 492 462 661 565 540   502   549   518