Assume: c = 40 + 0.8(y - t) g = 10 i = 20 t = 0, where t are taxes. (a) calculate y at equilibrium. (b) calculate c, i, and g at equilibrium. (c) now assume, ex = 5 + 4ep/p im = 10 + 0.1 (y - t) - 3ep/p e = 3 p = 1.5 p = 2