Economists in Funlandia, a closed economy, have collected the following information about the economy for a particular year:Y=10,000,C=5500,T =1,500,G=2000,The economists also estimate that the investment function is:I=3000 -100r, where r is the country’s real interest rate, expressed as a percentage. Calculate private saving, public saving, national saving, investment, and the equilibrium real interest rate