Respuesta :

Answer: 96 green pens sold

Step-by-step explanation:

Black = 3 pens

Red = 5 pens

Green = 6 pens

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Black = 7 packs

Red = 2 packs

Green = 4 packs

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Black = 3 x 7 = 21 total pens

Red = 5 x 2 = 10 total pens

Green = 6 x 4 = 24 total pens

Total units for total pens = 21 + 10 + 24 = 55u

55u = 220

1u = 220/55

    = 4

24u = 4 x 24

       = 96 green pens sold

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96 green pens were sold.