Help me out please ASAP

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

Plz ( true - false) all triangles have interior angles whose measure sum to 90.

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.