4) Sarawong and Huong are selling wrapping paper for a school fundraiser. Customers can buy rolls of plain wrapping paper and rolls of holiday wrapping paper. Sarawong sold 12 rolls of
plain wrapping paper and 12 rolls of holiday wrapping paper for a total of $288. Huong sold 6
rolls of plain wrapping paper and 2 rolls of holiday wrapping paper for a total of $64. What is
the cost each of one roll of plain wrapping paper and one roll of holiday wrapping paper?