3.Consider an economy described by the following equation: Y = C + I + G Y = 6,000 G = 1,500 T = 1,500 C = 600 + .3(Y – T) I = 1,000 – 50r a.What are the equilibrium values of C, I, and r? b.What are the equilibrium values of private savings, public savings, and national savings? c.If Taxes decrease from 1,500 to T = 1,000, find the new equilibrium values of C, I, and r. Also, find the new equilibrium values of private savings, public savings, and national savings.