Question 1102662
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The problem is nonsense.<br>
Radioactive decay is represented by an exponential decay function -- not an exponential growth function.<br>
Is the formula supposed to have an exponent of -0.2T, instead of the 0.2T that you show?<br>
And if you want a specific answer as to how much remains after 30 days, you need to tell us how much we started with....