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