In this case, any value given up by not choosing to
<span> spend or save the money is the "opportunity cost", because the money </span>could be spent elsewhere. "trade offs" and opportunity costs are very similar though in economics.
Language helped the Islamic empire to unite under the Abbasid Dynasty, which was the Arabic Language. It was easier to communicate and understand each other by speaking one language and having one religion (belief.) The correct answer is (c.) Arabic Language.
After the American Revolution, rich white men wrote the Declaration of Independence, the Bill of Rights, and the Constitution, but there are several groups in America who were not granted equal rights to this. Groups of people who were not white, rich, women, Jews, Moslems, African-Americans, Native Americans, and poor white men were not considered "equal" in America in the year 1776.
an expansion of settlement and growth in the western towns