Establishing general ledger accounts opening balances will always be zero true or false

True, When establishing general ledger accounts opening balances will always be zero. A ledger is a full record of all transactions over the lifetime of a company. When the company is first starting out, there is a zero balance because transactions have not been put on the ledger yet. The longer the company is in business, the more transactions there will be on the ledger.

answer the amount a seller is paid minus the cost of production;