Science
posted by Cherie .
Please respond I have this last question and then I can be done this course
Using absolute dating,a fossil is dated to be 3million years old and decomposed 1halflife. If it takes the same fossil 12million years to decompose to 4halflives, how old will it be when it is measured to be at 3halflives?

each half life is one half decomposed.
3 million years: one gone
6 million years: two gone
9 million years: three half lives past
12 million years: 4 half lives past
Your teacher is just too easy.
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