From where did islam spread?
a) from india to arabia
b) from the persian empire to the arab empire
c) from macedonia with alexander the great
d) from mecca and medina through arabia

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?