What side lengths form a polygon

And what side lengths DONT form a polygon

What can you determine about the solutions of this system

What is the area of the triangle 10 13 12

Will give brainliest for correct answer 8. use the distance time graph to answer these questions: a. what does the graph tell us about the velocity of the car? b. what is the average velocity of the car? (show work) c. is the velocity reflected in the graph positive or negative?d. is there any point on the graph where the car is not moving? how do we know?