Answer:
Imports: 3750
Exports: 3,000
net exports: -750
GDP = 900 - 750 = 150
Explanation:
Darnell transaction is an import, it is trading for foreing goods.
50 bottles at $75 each total $3,750
the sales from the US company aboard will be considered export.
200 transistors at $15 each total $3,000
The international commerce balance will be 3000 - 3750 = 750
The citizen doing a purchase to a national company will be part of the GDP
along with the international commerce balance
GDP = 900 - 750 net export = 150
None of these activities qualifies as investment or goverment spending.