DAILY SALES A doughnut shop sells a dozen doughnuts for
Chapter , Problem 117(choose chapter or problem)
DAILY SALES A doughnut shop sells a dozen doughnuts for $4.50. Beyond the fixed costs (rent, utilities, and insurance) of $220 per day, it costs $2.75 for enough materials (flour, sugar, and so on) and labor to produce a dozen doughnuts. The daily profit from doughnut sales varies from $60 to $270. Between what levels (in dozens) do the daily sales vary?
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