What is an example of a country that makes use of another nation’s currency?

Which sentence correctly uses a latin root word that means to see

In a small, closed economy, national income (gdp) is $350 million for the current year. individuals have spent $100 million on the consumption of goods and services. they have paid a total of $60 million in taxes and the government has spent $75 million on goods and services this year. use this information and the national income identity to answer the questions. how much does the economy spend on investment?

Which scholars explained the roles of the public and private sectors by comparing it to maneuvering a boat?