Kali and ashley are selling wrapping paper. customers can buy rolls of plain wrapping paper or rolls of shiny wrapping paper. kali sold 10 rolls of plain wrapping paper and 6 rolls of shiny paper for a total of 162.00. ashley sold 10 rolls of plain and 2 rolls of shiny for a total of 114.00 how much is one roll of shiny and one roll of plain cost.