How many triangles exist with the given side lengths? 12 in, 15 in, 18 in a. no triangle exists with the given side lengths. b. more than one unique triangle exists with the given side lengths. c. exactly one unique triangle exists with the given side lengths.

Which of the following points is collinear with (-2,1) and (0,3)

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.