Which of the following lines are parallel to y=-8x-3

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.

Which of the following is not a subset of {1,2,3}?

David leaves his house to go to school. he walks 200 meters west and 300 meters north. how far is david from his original starting point?