<PRE><B>Question 1130800</B>
The homicide rate decreases at a rate of 5% per year in a city that had 900 homicides in the most recent year.
a. At this rate, in how many years will the number of homicides reach 450 in a year? Use the approximation formula. 
B. What is the exact answer. 
450 = 900*0.95^t

0.95^t = 1/2
t = log(1/2)/log(0.95) = 13.51
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Ans: In the 14th year
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Cheers,
Stan H.
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