2. Athens, Inc., manufactures argon, xon, and zeon from a joint process. Each gas can be liquified and sold for a higher price. Data on the process are as follows: Product Units produced Joint costs.... Sales value at split-off... Additional costs to liquify. Sales value if liquified... Argon Xon Zeon Total 16,000 8,000 4,000 28,000 $ 60,000 (b) (a) $120,000 (c) (d) $30,000 200,000 14,000 $10,000 6,000 30,000 140,000 60,000 40,000 240,000 * This amount is the portion of the total joint cost of $120,000 that had been allocated to argon. Required Determine the value for each lettered item