Answer
The GDP of Whoville is $2990 billion
Explanation:
The formula for calculating GDP is given as
GDP = C + G + I + NX
Where, C = all private consumption
G = All government spending
I = Investment by businesses
NX = The country's net export
The net export = total export - total import
Total export = $9 billion
Total import = $28 billion
The net export = ($9 - $28) billion
The net export = - $19 billion
GDP = [($1945 + $1022 + $42 + (- $19)] billion
GDP = ($1945 + $1022 + $42 - $19)
GDP = $2990 billion
Hence, the GDP of Whoville is $2990 billion