a. What are the firm's total fixed costs? Make two more columns for this table reflecting Total Fixed Costs (TFC) and Total Variable Costs (TVC) at each output level. (Make this table on a separate piece of paper, not on this sheet, since you won't have room). b. Add three more columns for Average Fixed Costs (AFC), Average Variable Costs (AVC) and Average Total Costs (ATC) for each output level