In an economy C 500 0 9 Y and I 1000 where C Consumption expenditure and Y National I...........

In an economy, C = 500 + 0.9 Y and I = 1000 (where, C = Consumption expenditure and Y = National Income and I = Investment). Calculate the following

(i) Equilibrium level of income.

(ii) Consumption expenditure at equilibrium level of income. (3 marks)