An open circle is on 13, so the point is not include in the graph. The arrow points to the right, so the graph includes all numbers greater than 13.
Let x represents all numbers greater than 13.
The inequality is .
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=52d5f0e33957eaa17b0a0a7cfc4f9b83.png\")
.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=52d5f0e33957eaa17b0a0a7cfc4f9b83.png\")
.