Which inequality has a solid boundary line when graphed?

Which of the following is a justification used while proving the similarity of triangles lom and mon

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.

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?