The union of south american nations (unsur) is considered all of the following except (5 points)
a supranational organization
an intergovernmental union
a single-currency union
a regional alliance

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.

6 units. ab and lo are congruent sides, and if ab= 6 units, then lo would be the same.