Final answer:
The British responded to Native American attacks during the American Revolutionary War through military support, capturing American ships, and failing to comply with Jay's Treaty. Many Native American tribes supported the British due to their fear of land loss through American expansion.
Step-by-step explanation:
The British responded to Native American attacks in various ways during the American Revolutionary War. They provided arms and military support to Native fighters, captured American ships and impressed their sailors into service, and failed to abandon their posts in the Northwest Territory as required by Jay's Treaty. Additionally, many Indian tribes and nations supported the British because they feared that an American victory would lead to a greater loss of land through expansion.