The following is information for the economy of Tandor, where taxes are wholly autonomous:

C $=60+0\mathrm{.}6$YD where YD $=($Y $$ T$)$ G $=$ T $=320$

I $=100$ XN $=1040\mathrm{.}1$Y

a$.$ The value of equilibrium income is $

$.$

b$.$ At equilibrium, the amount of the budget

$($Click to select$)$

is $

$.$

c$.$ If government increased both its spending and taxes by $$40,$ the new equilibrium income would be $