a) Country A and Country B both start with a Real GDP of $100 billion. If Country A's Real GDP increases by 2% per year and Country B's Real GDP increases by 3% per year for the next 10 years, which country will have a higher Real GDP at the end of 10 years and by how much? b) Assume the same growth rate for each country's Real GDP as mentioned in part a) and that both Country A and Country B has a population of 10 million at start. If Country A's population decreases by 1% per year and Country B's population increases by 1% per year for the next 10 years, which country will have a higher per capita Real GDP at the end of 10 years and by how much?