<human>:  Michael has 4 packs of crayons and wants to buy 2 more. One pack of crayons costs $2.<human>: More please.
<bot>: How many packs of crayons will Michael have after buying 2 more? ** After buying 2 more packs, Michael is going to have 4 packs + 2 packs = <<4+2=6>>6 packs of crayons.
How much are all the packs of crayons Michael will have after the purchase worth? ** In total all packs are going to be worth 6 packs * $2.5/pack = $<<6*2.5=15>>15.
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