Stephanie and Maria are selling wrapping paper for a school fundraiser. Customers can buy rolls of plain wrapping paper and rolls of holiday wrapping paper. Stephanie sold 14 rolls of plain wrapping paper and 12 rolls of holiday wrapping paper for a total of $192. Maria sold 12 rolls of plain wrapping paper and 6 rolls of holiday wrapping paper for a total of $126. Find the cost each of one roll of plain wrapping paper and one roll of holiday wrapping paper.