Explain ONE difference in how the Incas and the Aztecs maintained their empires.

One difference in how the Incas and the Aztecs maintained their empires was how they handled conquered people. "In contrast to people living under the Aztecs, conquered people under the Inca did not have to pay tribute. Rather, they were subject to the mit’a system, mandatory public service."

some american cities felt workers were being oppressed by business monopolies

the correct answer is d

a conference committee is a group of congress representatives appointed by the senate and the house to reach an agreement over a bill that had different versions in each chamber. this is due to the fact that, to pass a law. both the house and the senate must agree on the exact same content and wording of the bill to present it to the president.