Final answer:
Partnerships, LLCs, and S corporations are known as flow-through entities because their income is reported on the owners' tax returns, and any expenses or losses from these entities are typically deductible before AGI.
Step-by-step explanation:
Entities such as partnerships, LLCs, and S corporations are known as (1) Flow-through entities because their income is reported on the owners' tax returns. Any expenses or losses from these entities are typically deductible (3) Before AGI.