<PRE><B>Question 611350</B>
 85 grams of radioactive material will decay at a rate of 45% per day. How many grams will be left after 6 days? Round to the nearest hundredth. 
This has to do with scientific notation
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If 45% decays, 55% remains after each year.
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A(t) = x*(0.55)^t
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A(6) = 85*(0.55)^6 
= 0.02353 
= 2.353x10^-2 grams
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Cheers,
Stan H.
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