The total weekly profit (in dollars) that Walmart gets from producing and selling its stationary items is given by P(x, y) = –x²– 3y²+ 60x+ 30y – 1 , where x denotes the number of pencils sold each week and y represents the number of pens sold each week. 1. Determine how many pencils and pens should be produced each week to maximize profit. 2. Determine how many pens must be produced to get a profit of $350 when 6 pencils were made in any one week

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