i hope its okay i post this here...... seems like a lot of intelligent folks here. 
i need some help on a homework problem
problem is:
In equilibrium, output and income will equal_____billion, and disposable income will equal_____ billion.
given
C=$300 billion + 0.75(Yd), I=$450 billion, G=$200 billion, T=$200 billion.
(C=consumption, Yd=disposable income, I=investments, G=gov't, T=taxes)
according to my sample exam, the answers are $3,200; $3,000 respectively. I know the formula for the second part but the first part i can't figure how to come about the answer. This is for a closed economy, so i'm assuming G & T can be left out right?
I know its probably something really easy but arghhh, i just need a hint. tia.
i need some help on a homework problem
problem is:
In equilibrium, output and income will equal_____billion, and disposable income will equal_____ billion.
given
C=$300 billion + 0.75(Yd), I=$450 billion, G=$200 billion, T=$200 billion.
(C=consumption, Yd=disposable income, I=investments, G=gov't, T=taxes)
according to my sample exam, the answers are $3,200; $3,000 respectively. I know the formula for the second part but the first part i can't figure how to come about the answer. This is for a closed economy, so i'm assuming G & T can be left out right?
I know its probably something really easy but arghhh, i just need a hint. tia.