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Calculate the amount, in grams, of an original 300 gram sample of potassium 40 remaining after 3.9 billion years. a. 300 b. 150 c. 75 d. 37.5​
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Calculate the amount, in grams, of an original 300 gram sample of potassium 40 remaining after 3.9 billion years.

a. 300
b. 150
c. 75
d. 37.5​

User Walf
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71718 88.
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So just if
User Shulem
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