Mathematics, 03.03.2022 01:50, mckennayoshz

A sample of a radioactive isotope had an initial mass of 120 mg in the year 2010 and decays exponentially over time. A measurement in the year 2015 found that the sample's mass had decayed to 50 mg. What would be the expected mass of the sample in the year 2018, to the nearest whole number?

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