Answer:
The net investment in the 2009 is $750 billion
Step-by-step explanation:
The level of net investment in the succeeding year us the difference between the opening stock stock of capital and closing stock of capital in the country of Republic of Capika as shown below.
Level of net investment=$12,750 billion-$12,000 billion
level of net investment=$750 billion
Choosing $12,750 is wrong because that is the closing, while also $12,000 billion is also wrong as it is the opening stock of capital.