closer economy savings

Consider a closed economy described by the following equations: Y = C+I + G Y = 8,000 G = 2,500 T = 2,000 C = 1,000 + 0.8 (Y - T) 1 = 1,200 - 100r 1 . For this economy, calculate the value of private saving, public saving, and national saving. 2. Find the equilibrium interest rate in this market for goods and services. 3. Now suppose that G is reduced by 500. Calculate the new value of private saving, public saving, and national saving. 4. Find the new equilibrium interest rate due to the decrease in G