数学问题:xandyarenumbersonthenumberline求解释,谢谢~~~!
1)xandyarenumbersonthenumberline
比较x和y的大小
2)x大于0
question:比较theaveragecostperissueofamagazinesubscriptionthatcosts2xdollarsfor24issues和theaveragecostperissueofamagazinesubscriptionthatcosts3xdollarsfor35issues的大小
3)thediagonalofsquareregionsis2.5
question:比较theareaofregions和3.125的大小