The marginal cost of a product can be thought of as the cost of producing one additional unit of output. For example if the marginal cost of producing the 50th product is $6.20, it cost $6.20 to increase production from 49 to 50 units of output. A. How many players should be produced to minimize the marginal cost? B. What is the minimum marginal cost? The function is C(x)=x^2-140x+8700