I need need this please help me Adam and Shreya are selling wrapping paper for a school fundraiser. Customers can buy rolls of plain wrapping paper and rolls of holiday wrapping paper. Adam sold 6 rolls of plain wrapping paper and 12 rolls of holiday wrapping paper for a total of $198. Shreya sold 9 rolls of plain wrapping paper and 10 rolls of holiday wrapping paper for a total of $201. Find the cost each of one roll of plain wrapping paper and one roll of holiday wrapping paper.​