Need help pls will give

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.

Solve for n? [tex]z = \frac{3}{4} mn[/tex]

Afootball is throw by a quarterback to a receiver