Ave a cash refund of $750 to a customer because of a lost package. (The customer had previously paid in cash.) Sent a check for $1,050 to the utility company to pay the monthly bill. Provided services for $7,800 on credit. Purchased new equipment for $4,600 and paid for it immediately by check. Issued a check for $3,500 to pay a creditor on account. Performed services for $15,250 in cash. Collected $6,250 from credit customers. The owner made an additional investment of $25,000 in cash. Purchased supplies for $3,250 on credit. Issued a check for $3,750 to pay the monthly rent. Analyze the above transactions and record a journal entry for each transaction.