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, what is the amount of nitrogen from the Phosphate Max brand?

a. 11.45
b. 19.20
c. 17.65
d. 11.55


b. 19.20

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