20mg of radioactive substance loses 8% of its mass every minute. Because the substance becomes weaker, this is a "___".problem

Question

20mg of radioactive substance loses 8% of its mass every minute. Because the substance becomes weaker, this is a "___".problem and can be modeled by the exponential function____.( After 10 minutes, the mass of the substance should be about___mg. rounded to the nearest whole number), and after minutes there will only be 2mg of the substance remaining (round the hours to the nearest 1/10).
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Kunduz · Accepted Answer

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