A fast-food restaurant has a cost of production C(x) = 4x + 100 and a revenue function R(x) = 14x. When does the company start to turn a profit? The company starts to turn a profit after it's production level reaches at least (Be sure to round up to the next whole number, so that your answer gives a profit greater than 0.)
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\[14x = 4x + 100\] ** Show more…
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