In order to fertilize his vegetable farm, John, a farmer, needs to choose from two fertilizers: Nitro Plus and Phosphate Max. Each bag of Nitro Plus costs $7 and contains 8 pounds of nitrogen and 6 pounds of phosphate. Each bag of Phosphate Max costs $9 and contains 4 pounds of nitrogen and 8 pounds of phosphate. John’s vegetable farm requires at least 32 pounds of nitrogen and 48 pounds of phosphate. (Assume fractions of a bag are allowed). At the optimal solution, how many bags of Nitro Plus does John use?
A. 3.2 bags
B. 1.6 bags
C. 2.1 bags
D. 4.8 bags
B. 1.6 bags
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