Listed below are a few transactions and events of Piper Company 1. Piper Company records a year-end entry for $10,000 of previously unrecorded cash sales (costing $5,000) and its sales taxes at a rate of 4% 2. The company earned $50,000 of $125,000 previously received in advance and originally recorded as unearned services revenue. Prepare any necessary adjusting entries at December 31, 2017 for Piper Company's year-end financial statements for each of the above separate transactions and events. (Piper has the policy of recording cash received in advance in balance sheet accounts.)