Derive the government expenditure and tax multiplier

Question

Problem

1. The structural model of an economy is given as below

C=400+0.8Y^d Consumption function

I=350 Investment

G=450 Government expenditure

T=200 Tax

i) Derive the savings function.

ii) Derive the government expenditure and tax multiplier.

iii) Compute equilibrium income and consumption.

The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.