6. Assume Maria Sanchez, the owner of a new bu siness called La Casa de Cafe, invested $15,000 cash and equipment with a market value of $23,0 00. Assume that La Casa de Cafe also took respo nsibility for an $18,000 note payable issued to fin ance the purchase of equipment. Prepare the jou rnal entry to record Sanchez's investment. 7. Explain what a compound journal entry is. 8. Why are posting reference numbers entered in the journal when entries are posted to accounts