Calculating Information for a Closed economy....don't even know where to START!!! HELP!?

2. You are given the following information for a closed economy [all figures in $ billions]:





C: 500 Snational: 200 G: 300 Sprivate: 400





In light of this information, calculate Y, T, Spublic, and I.|||Y=C+I+G


Y-C-G=S


S=I


Sn=200 鈫?I=200


Y = 500+200+300 = 1'000


Sn=Spub+Spr


200=Spub+400


Spub=200-400= -200


Spub = T-G


-200 = T-300


T= -200 + 300 = 100





Y = 1'000


T = 100


Spub = -200 (deficit)


I = 200