Final answer:
Based on Madison's words, 1. Only the federal government can declare war. send an army to invade another country, and borrow and spend money. The power to build roads and schools is not directly mentioned.
Step-by-step explanation:
Based on James Madison's words, it can be inferred that statements 1, 2, and 3 are probably true. Madison mentions that the operations of the federal government will be most extensive and important in times of war and danger, suggesting that the federal government has the power to declare war and send an army to invade another country. Based on Madison's words, the federal government has the power to declare war, send an army to invade another country, and borrow and spend money.
The power to build roads and schools is not directly mentioned. Additionally, Madison does not mention anything specific about the federal government's power to build roads and schools, so statement 4 is not directly supported by his words. However, it should be noted that the federal government does have the power to fund and maintain infrastructure projects through legislation.