A greeting card company can produce a box of cards for $7.50. If the initial investment by the company was $50,000, how many boxes of cards must be produced before the averag
cost per
box falls to $10.50?

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step-by-step explanation:

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sample answer: you can determine whether each element of the domain is paired with exactly one element of the range. for example, if given a graph, you could use the vertical line test; if a vertical line intersects the graph more than once, then the relation that the graph represents is not a function.