5,-50,500,-5000 what is the common ratio

Liz is shipping a package to her friend. the maximum weight of a medium flat-rate box is 20 pounds, including the box which weighs 6 ounces. write and solve an inequality to describe the possible weight ,w, of the contents that liz will ship to her friend if she must use a medium flat-rate box.

Icould really use some with this question.

Which compound inequality could be represented by the graph?