<PRE><B>Question 177515</B>
well since I cant see the accompanying graph, kind of hard to help you with that. Take a look at your graph at 90% and 95% levels and see what the cost is at those levels(these will be approximate values since you are taking them from the graph)
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b) for this just plug these values into the equation and solve for p
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c(p)=c(99.5)= 500000/100-99.5=1000000
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c(p)=c(99.9)= 500000/100-99.9=5000000
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c)what happens to the cost as the percentage of pollutants removed approaches 100% 
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looks like it begins to skyrocket....as you can see from 99.5 to 99.9 the cost increase by 5 times.
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