In the diagram, K, L, and M are the midpoints of the sides of triangle symbol ABC. The vertices of the smaller shaded triangles are the midpoints of the sides of triangle symbol KBL, triangle symbol AKM, and triangle symbol MLC. The perimeter of triangle symbol ABC is 72 in. What is the perimeter of the shaded region?

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.