Economics may be referred to as a(n) ________ science, meaning that data is looked at to see whether assertions are correct

Which of following groups of countries are all advanced economies?

A) Australia, Brazil, and the United States B) Hong Kong, Japan, France, and the United Kingdom C) Italy, the United States, China, and Russia D) Singapore, Russia, France, and Chad E) Mexico, Canada, Germany, and Egypt

Refer to Scenario 1-1. Using marginal analysis terminology, what is another economic term for the incremental cost of producing the last 400 t-shirts?

A) operating cost B) marginal cost C) explicit cost D) Any of the above terms are correct.