Manygirlsgotoyourhouse.Theybringalltheirpetdogs.Inall,...
问题详情: Manygirlsgotoyourhouse.Theybringalltheirpetdogs.Inall,thereare22headsand72feet.Howmanygirlsanddogsarethereintheroom? A.6girlsand16dogs B.7gi...
问题详情: Manygirlsgotoyourhouse.Theybringalltheirpetdogs.Inall,thereare22headsand72feet.Howmanygirlsanddogsarethereintheroom? A.6girlsand16dogs B.7gi...