Which leader of the scientific revolution developed a mathematical coordinate system and emphasized the use of mathematics in all areas? a. vesalius b. jean-jacques rousseau c. francis bacon d. rené descartes

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.