The following information summarizes the company's cost structure. Both the 13,000 and 23 range. Saved Total costs at 23,000 units are in the following table: Total costs at 23,000 units: Total Variable cost $350,000 Total Fixed cost $200,000 Total Cost $550,000 Estimate the following costs at the 13,000 unit level of activity. a. Variable cost per unit = $ (Round to the nearest cent) b. Fixed cost per unit =$ (Round to the nearest cent) c. Total Variable cost =$ (Round to the nearest dollar) (Round to the nearest dollar) d. Total Fixed cost = $