Question 769935
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For the last part:
If the report has x pages,
the cost is 1.8 + 0.05*x (fixed binding cost + variable cost per page)
This is given to be 3.3

So 3.3 = 1.8 + 0.05*x
0.05*x = 1.5
x = 1.5/0.05 = 30
Report has 30 pages :)
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