Amy has 3 pieces of rope that have lengths of 15 1/3 feet, 20 1/2 feet, and 30 3/4 feet.

Part A: How many feet of rope does Amy have in all?

Part B: If Amy cuts each length of rope into 3-foot pieces, how many 3-foot pieces of rope will she have?

Part C: Explain how you found your answer.

Part D: How much rope will be left over?

Part E: Explain how you found your answer.