Solve the problem.Suppose that a sales person observes that if an item is priced at $10 per item then 5 items are sold. If 3 items are sold for $12 per item then find an equation to model the number of items sold (y) for x dollars per item.

A. y = -x + 15
B. y = -x - 5
C. y = x + 15
D. y = x - 5


Answer: A

Mathematics

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