Andrew Su, CEO at brokerage Compass Global Markets said the average cost of producing gold in Australia, home to some of the world's biggest gold miners, has jumped from $500 an ounce in 2007 to over $1,000 an ounce this year.
Persons (plural) is a very formal word. We only use it in rather legalistic contexts: [notice in a lift] Any person or persons found in possession of illegal substances will be prosecuted.
Person(noun) a character or part, as in a play; a specific kind or manifestation of individual character, whether in real life, or in literary or dramatic representation; an assumed character. Person(noun) the bodily form of a human being; body; outward appearance; as, of comely person. Person(noun)