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A company's revenue from selling x items is given by the function R(x)=44x and it's from...

A company's revenue from selling x items is given by the function R(x)=44x and it's from selling x items is given by the function C(x)=x2+384. Which of the following statements about their profitability is true?

The company must sell at least 2 and at most 12 items to make a profit.

The company must sell at least 5 and at most 20 items to make a profit.

The company must sell at least 10 and at most 28 items to make a profit.

The company must sell at least 12 and at most 32 items to make a profit.

Math   Calculus   
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