About how many years will it take for a sample of polonium-210 to have at most 7% as much polonium-210 as the original sample?
A) 530 years
B) 2 years
C) 1 year
D) 529 years

Question

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The Answer of About how many years will it take for a sample of polonium-210 to have at most 7% as much polonium-210 as the original sample?
A) 530 years
B) 2 years
C) 1 year
D) 529 years

About How Many Years Will It Take for a Sample