A firm receives an invoice for $25,000 worth of supplies it purchased. The invoice states the following trade terms: "2/10 Net 30". The terms imply that what amount must be paid by what day?

		$25,000 by 30th day
		$22,500 by 30th day
		$22,500 by 2nd day
		$24,500 by 10th day
		either a or d