Question 930448
A firm predicts that sales will increase during a promotional campaign and that the number of daily sales will be given by N= 200(0.01)^0.8t, where t represents the number of days after the campaign begins. How many days after the beginning of the campaign would the firm expect the to sell at least 60 units per day. 
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200(0.01)^0.8t >= 60
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0.01^(0.8t) = 0.3
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Take the log::
0.08t*log(0.01) >= log(0.3)
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0.08t = log(0.3)/log(0.01) >= 0.2614
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t >= 0.2614/0.08
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t >= 3.27 days
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Cheers,
Stan H.
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