Question: Let C(x)= 2/7x^2+ 5x+2 dollar be the cost function, where x represents the quantity. The estimate cost of 15th item is: O a. 12$ O

Let C(x)= 2/7x^2+ 5x+2 dollar be the cost function, where x represents the quantity. The estimate cost of 15th item is: O a. 12$ O b. 10S O c. 13$ O d. none

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