# Math

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Your roommate also performs the last steps of the process by ﬁrst removing the cookies from the oven and putting them aside to cool for ﬁve minutes, then carefully packing them in a box and accepting payment. Removing the cookies from the oven takes only a negligible amount of time, but it must be done promptly. It takes two minutes to pack each dozen and about one minute to accept payment for the order.
Baking trays hold exactly one dozen cookies, you will produce and sell cookies by the dozen. Should you give any discount for people who order two dozen cookies, three dozen cookies, or more? If so, how much? Will it take you any longer to fill a two-dozen order than a one-dozen order?

Since the packaging and ingredient cost are the same it doesn’t matter if one buys 1,2 or 3 dozen what differs is the time.

I don’t know how to calculate the discount for the two dozen cookies, three dozen cookies, or more.

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Also, would the number of trays and mixers needed be just one mixer since it is used to make 3 dozen cookies and afterward it is idle; 3 trays for the 3 dozen cookies the one mixer able to provide the dough for?

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In addition, how would one calculate the the amount I would be willing to pay to rent an additional oven?