Economists in Funlandia, a closed economy, have collected the following information about the economy for a particular year:

Y C

T G

10, 000 6, 000 1, 500 1, 700 The economists also estimate that the investment function is:
I 5 3, 300 2 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.