Answer:
there are no initial balances, but I can still record the journal entries that would go into the general ledger:
Oct. 5 Received $1,490 in cash from customers for accounts receivable due.
Dr Cash 1,490
Cr Accounts receivable 1,490
Oct. 10 Billed customers for services performed $5,090.
Dr Accounts receivable 5,090
Cr Service revenue 5,090
Oct. 15 Paid employee salaries $1,380.
Dr Salaries expense 1,380
Cr Cash 1,380
Oct. 17 Performed $570 of services in exchange for cash.
Dr Cash 570
Cr Service revenue 570
Oct. 20 Paid $1,990 to creditors for accounts payable due.
Dr Accounts payable 1,990
Cr Cash 1,990
Oct. 29 Paid a $260 cash dividend.
Dr Dividends
Cr Cash 260
Oct. 31 Paid utilities $340.
Dr Utilities 340
Cr Cash 340