If you want my honest opinion i believe that 2 & 4 are the correct answers.
To cut ties with the Native American culture and adapt to the American culture.
1. disease brought by colonists was a major factor. Kills millions
2. violent conflicts between the colonists and/or British forces against the natives
3. The westward expansion (there's a special name for it) Colonists kept colonizing deeper and deeper into the mainland until reaching the western sea coast. killing 10's of thousands on the way there
*millions died, possible around 10 mill
Answer:
Its going down by half of the last number. Next would be 6.25, 3.125 and 1.5625,
