Which is the best estimate for the average rate of change for the quadratic function graph on the interval −4 ≤ x ≤ 4?

What's the difference between: x≥0 and nonnegative integer. ?

Which choice represents the sample space ,s for this event

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.