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is summarized for the month of April in the following table: Holiday Company produces two models: Red and Green. Information regarding the products Number of units. Sales revenue Variable costs Fixed costs Net Income Red 700 $7,000 5,600 1.000 $ 400 Green 300 $4,500 3,600 700 $ 200 Total 1,000 $11,500 9,200 1,700 $ 600 a) If Holiday sells 4 more red units, by how much will profit increase? b) If Holiday sells 9 more green unite but how much will profit increase?