The Total Daily Revenue (In Dollars) That Weston Publishing Realizes

Short Answer

The total daily revenue (in dollars) that Weston Publishing realizes in publishing and selling its English-language dictionaries is given by
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where x denotes the number of deluxe copies and y denotes the number of standard copies published and sold daily. The total daily cost of publishing these dictionaries is given by
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dollars. Determine how many deluxe copies and how many standard copies Weston should publish each day to maximize its profits. Please round the answers to the nearest integer.
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__________ deluxe copies
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__________ standard copies
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What is the maximum profit realizable? Please round the answer to the nearest dollar.
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$__________