The 9/11 attacks on the world trade center and pentagon cost which of the following? A. The us invasion Kuwait
B. The global war on terror
C. The Iranian nuclear enrichment program
D. The invasion of Cuba

How did inca develop their road system? a) they used mortar to hold the stones together.b) they built suspension bridges over rivers. c) they mixed copper and stone together to make the blocks.d) they laid roads in the cities, not in the less densely populated deserts.