on a beautiful autumn-like day, Kamar went for a run. He ran 6 miles away from his house. Later, he began to run back towards home, a distance of 3 miles. After taking a rest, he continued to run the last 3 miles to his house.
a) How far did he run in total? ____________

b) How far from home did he end up, at the end of the day? _____________

c) When he took a rest, how far was he from home? _________

d) When he took a rest, how far had he run? __________