A projectile is propelled along the x-axis. During 5.6 s it moves from position 66 m to position −37 m. Find its average velocity (including the sign).

Is there a picture to go along with this

The purpose of a lab is to do your "expirements" the importance of the topic is so you can now what the story is about and the last one is because no one is me with my question ( what is 3 over 4 x - 9 = 27 maybe you can )