How do courts and administrative agencies settle legal disputes?

"The United States has a highly developed court system. This branch of government, the judiciary, is responsible for settling disputes by applying and interpreting points of law. Although court decisions are the basis for common law, the courts also answer questions left unanswered by statutes and administrative rulings. They have the power to assure that these laws do not violate the federal or state constitutions.\n\nMost court cases start in the trial courts, also called courts of general jurisdiction. The main federal trial courts are the U.S. district courts. There is at least one federal district court in each state. These courts hear cases involving serious federal crimes, immigration, postal regulations, disputes between citizens of different states, patents, copyrights, and bankruptcy. Specialized federal courts handle tax matters, international trade, and claims against the United States.\n\nThe losing party in a civil (noncriminal) case and a losing defendant in a criminal case may appeal the trial court’s decision to the next level in the judicial system, the appellate courts (courts of appeals). There are 12 U.S. circuit courts of appeals. Cases that begin in a federal district court are appealed to the court of appeals for that district. These courts may also review orders from administrative agencies. Likewise, the states have appellate courts and supreme courts for cases tried in state district or superior courts. No cases start in appellate courts. Their purpose is to review decisions of the lower courts and affirm, reverse, or modify the rulings.\n\nThe U.S. Supreme Court is the highest court in the nation. It is the only court specifically established by the U.S. Constitution. Any cases involving a state or in which an ambassador, public minister, or consul is a party are heard directly by the Supreme Court. Its main function is to review decisions by the U.S. circuit courts of appeals. Parties not satisfied with a decision of a state supreme court can appeal to the U.S. Supreme Court. But the Supreme Court accepts only those cases that it believes will have the greatest effect on the country, only about 200 of the thousands of appeals it gets each year.\n\nAdministrative agencies have limited judicial powers to regulate their special areas. These agencies exist at the federal, state, and local levels. For example, in 2017, the Federal Trade Commission (FTC) ordered satellite TV provider Dish Network to pay a fine of $280 million for violating the Do Not Call Registry, a clearinghouse for consumers who do not want to be contacted by telemarketers. A federal judge ruled that Dish Network was liable for more than 66 million calls that violated the FTC’s Telemarketing Sales Rule. Federal agencies include the Federal Trade Commission, Food and Drug Administration, Consumer Products Safety Commission, Federal Communications Commission, Environmental Protection Agency, Federal Energy Regulatory Commission, Federal Aviation Administration, and Federal Highway Administration. These agencies enforce laws and standards involving unfair business practices, food and drug safety, consumer products, communications, environmental protection, energy, aviation, and vehicle safety."