What is grit? what is growth mindset?

Did the writers of the declaration of independence accomplish their goals (did we get our independence and the new government we wrote about)?

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?

On a production possibility curve, data points that fall outside of the curve represent what