Determine the cost of merchandise sold for the transaction on september 25 using the perpetual inventory system and the fifo method. date item units cost total beginning inventory 5 $5 $25 september 4 purchase 8 6 48 september 8 sale 6 september 20 purchase 15 7 105 september 25 sale 12 a.$105 b.$77 c.$84 d.$73

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Combining the emissions released by fossil fuel burning and  the carbon released via land use change, we get a total of 8.7 gt. since the problem states that the oceans "take up" or sequester  2.4 gt carbon  per year, we subtract that value from 8.7 gt, leaving us with 6.3 gt of carbon. since the problem states that 3.4 gt carbon dioxide emissions end up in the atmosphere, the "missing sink" of carbon takes up 2.9 gt, a value we got by subtracting the 3.4 gt amount recorded from the 6.3 gt carbon left available after the oceans sequester the carbon dioxide.