A gain of pounds.
The word Gain suggests a positive integer.
Since, the number line represents the .
Graph the number line.
Graph of the gain on number line is \ \
.
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2a06887749c014f55973fb0163eb3e52.png\")
pounds.![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=75db3486f7dc95cb05995082df200a84.png\")
Gain suggests a positive integer..![\"\"](\"/userfiles/20-64-2.gif\")
![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
.