How do the shapes of south america and africa support the theory of plate tectonics? find another example of land areas that once might have been joined together but seperated as plates moved apart.

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?