How to find the area and perimeter of an image on a coordinate plane

Find the value of the cosine for angle a

What is a graph with a never ending line called?

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.