An economy is represented by the following set of equations: Y =C+1

C= 80m + 1.6Y where
Y represents aggregate expenditure

C represents consumption expenditure by households.

I represents investment expenditure by firms M millions of Ghana cedis.

Given that the value of Investment (I) is GH¢100m calculate equilibrium

(i) Estimate the aggregate expenditure (Y)

(ii) Consumption expenditure (C)

(iii) Aggregate saving (S)