Peter Boyle is planning to build a new recycling plant.The fixed and variable costs for three potential sites are as follows ( on U.S.dollars):

Over what range of recycling volume is each city optimal? For a recycling volume of 5000 units,which site is best?

\begin{tabular}{|l|r|r|r|} \hline \multicolumn{1}{|c|}{ Cost } & \multicolumn{1}{c|}{ Chicago } & \multicolumn{1}{c|}{ Erie } & \multicolumn{1}{c|}{ Dallas } \\ \hline Fixed Cost & $1,200,000 & $700,000 & $900,000 \\ \hline VariableCostperUnit & $75 & $110 & $90 \\ \hline \end{tabular}