The net cost of the amount needed in filling the prescription is 7.86 per gallon
Net cost
- Cost of witch hazel = 12 per gallon
- Discount = 34.5%
Net cost = 12 - (34.5% of 12)
= 12 - (0.345 × 12)
= 12 - 4.14
= 7.86 per gallon
Therefore the net cost of the amount needed in filling the prescription is 7.86 per gallon
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