use the example of the building of the panama canal to explain how historical context can change over time

Look at the graph. where p is price and q is quantity, what might cause a move from b to a?

Why was one vote per day a weakness of the articles of confederation

Ally just bought a plane ticket. she notices that the fare includes a september 11 security fee. what is the government’s purpose for imposing this fee? a. to pay for security at airports b. to pay for airplane maintenance c. to compensate airlines for rising fuel prices d. to pay for new government airplanes