The data in the table below are for the economy of Nubia.

a. Complete the AE column.

Y	T	YD	C	S	I	G	X	IM	XN	AE
0	60	−60	20	−80	50	110	160	70	90
200	70	130	190	−60	50	110	160	80	80
400	80	320	360	−40	50	110	160	90	70
600	90	510	530	−20	50	110	160	100	60
800	100	700	700	0	50	110	160	110	50

b. Write out expressions for the tax function, the consumption function (related to national income [Y]), the net export function, and the AE function. Round your answers to 2 decimal places.

T	=	(Click to select) + − (Click to select) C G S Y
C	=	(Click to select) + − (Click to select) C G S Y
XN	=	(Click to select) + − (Click to select) C G S Y
AE	=	(Click to select) + − (Click to select) C G S Y

c. Use algebra to find out the value of equilibrium income. Round your answer to the nearest whole dollar.

Equilibrium income is $ .