Assume that the only variable resource used to produce output is labor. 
Refer to the provided table. Diminishing marginal returns set in with the addition of the
Definitions:
Principal
The main party to a transaction, such as a borrower in a loan agreement or a buyer in a sales contract.
Contract
An enforceable pact by law that involves two or more individuals or groups.
Legal Capacity
The capability recognized by law for a person to act in a particular role or enter into a contract, often related to age and mental soundness.
Express Authority
The power granted to an agent or representative explicitly stated by the principal in a written or oral form.
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