Quien me pase su id de frefire le doy la mejor respuesta​

Can you me find the missing length. i attached an image.

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.

Two numbers have a sum of -19. one number is x. what expression represents the other number?