Which economic mechanism does a barter system operate without?

Which of the following scenarios illustrates the error in thinking known as overconfidence? choose the correct answer from the following choices, and then select the submit answer button. over the years, about 45 percent of the students in dr. hunt's introductory psychology course have correctly predicted their major, but their confidence in this prediction has been about 75 percent on average. maria was afraid she would fail her introductory psychology midterm. when she got an a, she convinced herself that she had known all along she would do well on the exam. over the years, about 45 percent of the students in dr. hunt's introductory psychology course have correctly predicted their major, and their confidence in this prediction has also been about 45 percent on average. five students in dr. hunt's introductory psychology course were unwilling to predict major because they were afraid of making an incorrect prediction.

Tanya was used to using word, and she did some work for her brother mike, who was using wordperfect. tanya was quickly able to use wordperfect for windows with little difficulty, since many of the commands for it were the same as the commands for word. tanya's ability to use wordperfect best illustrates:

Eter lives in a beautiful region. peter and other residents of his region use water from the river that flows through their region. recently, mark industries decided to set up their chemical plant near that river. peter realized that the waste from the chemical plant would pollute the river. he decided to seek a legal ordinance that would restrict the use of land near that river for specific use only. which type of zoning will peter and his region?