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 in pounds, w, of the contents that Liz will ship to her friend if she must use a medium flat-rate box. Use the drop-down menus to explain your answer. The weight of the box and the weight of the contents of the box must be Choose... 20 pounds. So the situation can be solved by the inequality w Choose... 19 10/16. The contents of the package can weigh Choose... 19 pounds 10 ounces.