A giant slingshot is formed with ends held at points A and C. Barb has stretched it back and is holding it at point B. Donny daredevil stands at the midpoint of the line segment AC. On which part of the angle formed by the slingshot does Donny lie?

Renee hiked for 6 3 /4 miles. after resting, renee hiked back along the same route for 5 1 /4 miles. how many more miles does renee need to hike to return to the place where she started? represent your answer as a simplified mixed number, if necessary.