Given the following model: Consumption: C = 500 + 0.5Yd Investment: I = 250 Government Expenditure: G = 100 Proportional Tax Rate: t = 0.1 Imports: M = 0.25Y Exports: X = 50 Yd: Disposal Income Y: Real GDP (Note: There is no lump-sum tax) Given the following model: Consumption: C = 500 + 0.5Yd Investment: I = 250 Government Expenditure: G = 100 Proportional Tax Rate: t = 0.1 Imports: M = 0.25Y Exports: X = 50 Yd: Disposal Income Y: Real GDP (Note: There is no lump-sum tax)

How much is the planned investment