Day, An online furniture store sells chairs for $ 50 each and tables for $ 300 each . Every the store can ship no more than 53 pieces of furniture and must sell a minimum of $ 8400 worth of chairs and tables . If 27 chairs were sold , determine all possible values for the number of tables that the store must sell in order to meet the requirements . Your answer should be a comma separated list of values . If there are no possible solutions , submit an empty answer .