I need help answering number 6 and 7 of the systems understanding aid packet 10th edition.

6 19th Yes Received sales return request No. R8034 (Doc. No. 12) University (EWU). The request was approved, and the acknowledgment copy mailed to EWU p20 You can't record the sales return yet because the goods have not yet been received from Eastern Wisconsin University, Received vendor invoice No 105963 (Doc No. 18) from First Security Insurance for the fourth quarter's health insurance coverage for employees and immediately issued a check (Doc No. 20) for payment in full Ray Kramer 7 20th Yes 23 Purchase orders are not issued for services that Waren purchases