<PRE><B>Question 101717</B>
C(x)= 2x^2-57x+26 where x is the number of watches repaired. 
What is the daily cost of running the shop if the number of watches repaired is 50? 
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The weekly cost is C(50) = 2(50)^2-57(50)+26 = 2176 dollars
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The daily cost depends on how many days he works per week.
If he works 7 days the cost is 2176/7
If he works 5 days the cost is 2176/5
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Cheers,
Stan H.</PRE>