Need help on the questions that are circled in blue pen?

Which two factors caused many americans to migrate to the west in the mid-nineteenth century? pick two the texas revolution discovery of gold at sutter’s mill the mexican-american war an interest in american indian culture cheap land prices

What were some of the great finds that portuguese sailors discovered after prince henry established his navigational school in 1415? the gold coast and the cape verde islands gold and silver ore china the cape of good hope

Thinking back to previous chapters, analyze america’s policies toward indians from the washington administration to the removal of indians from the southeastern states in the 1830s and early 1840s. what ideas and policies about indians remained the same? which changed? why?