Why did Polk blame Mexico for the start of the Mexican-American War?

The establishment of columbia as the state capital was important because a) it was located in the heart of the upcountry. b) it was located in the heart of the low-country. c) it was already established as a vital industrial center. d) it represented a compromise location central to most citizens.

If f(x) = 3x + 2 and g(x) = 2x - 2. what is (f - g)(x)?

Which of these rose during the great depression? a migration b consumerism c membership in the republican party d employment