Can some one please help me with the answers!?

The soviet union and the united states believed in two very different economic systems. what were the names of each?

Ok serious americans were british ay don’t we have a british accent?

How were the okanogan highlands formed? a. by subduction, which caused huge folds in earths surface b. as a result of retreating glaciers carving great valleys into the earth c. when molten rock from under the earth approached the surface d. when the collision of volcanic island chains and ocean rocks formed new earth