It can be inferred that sir walter raleigh was unable to establish a successful colony at roanoke island because
a. there was little planning
b. there was little financial backing
c. the native americans attacked them
d. all of the above

I would say D, all of the above. Native Americans were unsurprisingly unfriendly to the people trying to take their land. It had lackluster planning and financial backing, so it was just a recipe for disaster.

the tariff was created to protect industry in the northern part of the united states. industries in the north were being driven out of business by imported goods that were priced at a low rate. the goal was to protect these industries   by taxing the goods.