Information related to Riverbed Co. is presented below. 1. On April 5, purchased merchandise on account from Tamarisk Company for $36,000, terms 3/10, net/30. FOB shipping point. 2. On April 6, paid freight costs of $920 on merchandise purchased from Tamarisk 3. On April 7, purchased equipment on account for $30.500. 4. On April 8 , returned $4,000 of merchandise to Tamarisk Company. 5. On April 15, paid the amount due to Tamarisk Company in full. Prepare the journal entries to record these transactions on the books of Riverbed Co. under a perpetual inventory system. (List all debit entries before credit entries. no entry is required, select "No Entry" for the occount titles and enter O for the amounts)