Why did the incas build extensive road systems?

During world war 2 mexican workers came to the united states as part of the

How did tyrants attempt to gain the approval of common citizens in ancient greece?

Which purposes of the constitution are found in the preamble? select the six correct answers. to provide for the common defense to form a more perfect union to promote the general welfare to secure the blessings of liberty to declare independence from britain to establish justice to ensure domestic tranquility