Mathematics, 16.05.2021 09:10 tatemcgee

The half-life of a radioactive substance is 11 days. After 12 days a sample of the substance has been reduced to a mass of 4 mg.

What was the initial mass (in mg) of the sample?

Using your answer from above, after how many days will there only be 0.6 mg of substance left?

(Round your answer to 2 decimal places if needed)

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