Answer:
The amounted contributed to U.S.GDP is $2 million
Explanation:
First and foremost, the question reiterated that $1 m is due to U.S-owned equipment company and U.S.managers working in Mexico,this is where the key to unlocking the question lies.
On the basis that the money is shared equally between the equipment company and the U.S managers working in Mexico,each group gets $500,000 which is an input for the car manufacturer. However, $2.5m worth of cars are sold to U.S-an output ,deducting the $500000 due to the managers from the output value gives $2m