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Lin Co., a distributor of machinery, bought a machine from
the manufacturer in November year 1 for $10,000. On December
30, year 1, Lin sold this machine to Zee Hardware for
$15,000, under the following terms: 2% discount if paid within
thirty days, 1% discount if paid after thirty days but within sixty
days, or payable in full within ninety days if not paid within the
discount periods. However, Zee had the right to return this machine
to Lin if Zee was unable to resell the machine before expiration
of the ninety-day payment period, in which case Zee’s obligation
to Lin would be canceled. In Lin’s net sales for the year
ended December 31, year 1, how much should be included for
the sale of this machine to Zee?