Human: John needs to take 2 pills a day. One pill costs $1.5. The insurance covers 40% of the cost. How much does he pay in a 30-day month? Assistant: 
How much does one pill cost? ** It cost 2*1.5=$<<2*1.5=3>>3 a day.
How much does it cost in a month? ** So it cost 3*30=$<<3*30=90>>90 per day.
How much does the insurance cover? ** Insurance covers 90*.4=$<<90*.4=36>>36.
How much does he pay in a month? ** So he pays 90-36=$<<90-36=54>>54 a month.
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