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The table below represents costs for producing pairs of sunglasses. Calculate the marginal cost of producing the 4th pair of sunglasses. Round your answer to two decimal places. Total Marginal Average Quantity Cost Cost Total Cost $34.00 $34.00 $34.00 2 $46.50 $12.50 $23.25 3 $56.50 $10.00 $18.83 4 $63.50 $? $15.88 Provide your answer below: MC = $ 7.00