11. Wilbur and Cody are selling wrapping paper for a school fundraiser. Customers can buy rolls of plain wrapping paper and rolls of holiday wrapping paper. Wilbur sold 1 roll of plain
wrapping paper and 12 rolls of holiday wrapping paper for a total of $149. Cody sold 10 rolls
of plain wrapping paper and 8 rolls of holiday wrapping paper for a total of $146. What is the
cost each of one roll of plain wrapping paper and one roll of holiday wrapping paper?