Answer:
7,000 pounds
Explanation:
Data provided in the question:
Shrimps Bubba catches per year = 4,000 pounds
Shrimps that Bobby can catch per year = 3,000 pounds
Therefore,
The marginal contribution of Bobby in the output if Bobby is hired is 3,000 pounds of shrimp
Hence,
The total output of his shrimp business is Bubba hires Bobby will be
= Output of Bubba per year + Output of Bobby per year
= 4,000 pounds + 3,000 pounds
= 7,000 pounds