Final answer:
Cory's suggestion to Gary means that he should buy a property, renovate it, and sell it at a higher price to make a profit.
Step-by-step explanation:
When Cory, a real estate agent, advises Gary to buy a property to flip, she is suggesting that Gary should buy a run-down property, renovate it, and sell it for a higher price. This process involves purchasing a home that may be below market value due to its condition, investing in its improvement and modernization, and then selling it in the hopes of making a profit from the renovations. It is a common strategy in the real estate industry for investors looking to make a quick profit.