On September 1, Sarasota Inc. had an inventory of 33 backpacks at a cost of $30 each. The company uses a perpetual inventory system and estimates returns at 8%. During September, the following transactions occurred:

Sep 4 Purchased 50 backpacks at $30 each from Back Packs Unlimited, terms n/30.

Sep 6 Received credit of $180 for the return of 6 backpacks purchased on Sept. 4 that were defective.

Sep 9 Sold 35 backpacks for $50 each to University Supply, terms n/30.

Sep 14 Paid Back Packs Unlimited in full.

Sep 18 Received payment from University Supply.

Record the September transactions for Sarasota Inc. (If no entry is required, select "No Entry" for the account titles and enter O for the amounts. Credit account titles are automatically indented when amount is entered. Do not indent manually. Record journal entries in the order presented in the problem. List all debit entries before credit entries.)