Answer:
multiplier: 1.42857
increase in the GDP when government spending increase by 1,000: 1,428.57
1
Explanation:
the multiplier if we assume no taxes or imports:
[tex]\frac{1}{1-MPC}[/tex]
[tex]\frac{1}{1-0.3C}[/tex]
multiplier = 1.4285714285714
Now we apply this to the goverment spending to know the effect
1.4285714285714 x 1,000 = 1,428.571228 rounding to: 1,428.57