Un número que multiplicado de -36 y restado -5

Pls , the question is in the picture!

Divide the following fractions 3/4 ÷ 2/3 1/2 8/9 9/8 2

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.