exam 2 econ The following 6 questions are based on the following table. Calculate total costs at 4 units of output. Do not put a dollar sign in your answer. (The 6 columns are Quantity, Total Fixed Cost, Total Variable Cost, Total Cost, Average Total Cost, and Marginal Cost. The Quantity and Total Variable Cost columns have been filled in along with the first row for Total Fixed Cost. Average Total Costs and Marginal Costs are not calculated at a quantity of 0.) Quantity Total Fixed Cost Total Variable Cost Total Cost Average Total Cost Marginal Cost 0 15 0 XXXXX XXXXX 1 25 2 40 3 50 4 55 5 65 You Answered 55 70 (with margin: 0)