If 1 carton contains 12 boxes, then a dozen cartons contain 12*12 = 144 boxes
If 1 box has 10 packs of cookies, then 144 boxes have 144*10 = <<144*10=1440>>1440 packs
If a dozen cartons cost $1440 and contain 1440 packs of cookies, then each pack costs 1440/1440 = $<<1440/1440=1>>1
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