Prepare journal entries for the following transactions which occurred at Stark Corporation:
The owner, Tony Stark, invested cash of $12,000 and office equipment valued at $7,500 into the business, receiving common shares in exchange.
Purchased supplies for cash, $1,000.
Paid $750 for one month's rent on the store.
Billed a client, Ultron, $1,500 for services rendered.
Tony Stark received a dividend of $300.