Suppose the labor cost (in dollars) for manufacturing a camera can be approximated by 3 L(x,y) = x² + y² - 7x-2y - 2xy + 109 where x is the number of hours required by a skilled craftsperson and y is the number of hours required by a semiskilled person. Find values of x and y that minimize the labor cost. Find the minimum labor cost. Labor cost will be minimized when x = 9 and y = 10. The minimum labor cost is $. (Round to the nearest cent as needed.)

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