Answer: We cannot determine how much time the runner will take to complete half the distance between the start line and the high school without knowing the distance and the speed of the runner.
If we know the distance and speed, we can use the formula:
time = distance / speed
For example, if we know that the distance between the start line and the high school is 10 kilometers, and the runner's speed is 5 kilometers per hour, then the runner would take 1 hour to complete the entire distance. To find how much time the runner would take to complete half the distance, we can use the formula:
time = distance / speed = (10/2) / 5 = 1 hour / 2 = 30 minutes
So in this case, the runner would take 30 minutes to complete half the distance between the start line and the high school. However, without knowing the distance and speed, we cannot determine the answer to this question.
Explanation: