Go math chapter 9 test review answers 5th grade.

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Step-by-step explanation:

Option C. 70x + 50; $16, 850

Step-by-step explanation:

Profit = Revenue - Cost

The revenue of the company can be modeled =

The cost of producing the cell phones can be modeled =

Here variable x represents the number of cell phones sold.

Therefore, profit would be

           = 70x + 50

By substituting the number of sold cell phones in place of x.

= 70(240) + 50

= 16,800 + 50

= $16,850

Hence, the answer would be option C.