"Free Slurpees" are not really "free" because they come at some costs.
What are "Free Slurpees?"
For a customer to gain "Free Slurpees" from the 7-Eleven Convenience Stores, they must have become a member of the 7Rewards Loyalty Program. Membership entitles the customer to a coupon redeemable in July.
Real Cost of "Free Slurpees"
The cost of "Free Slurpees" is embedded in the customer's continued patronage of the 7-Eleven Convenience Stores. The customers purchase goods they could not have bought to gain the reward.
Thus, we can conclude that the cost of "free Slurpees" is an opportunity cost, usually embedded in the costs of other unwanted goods purchased at the stores.
Learn more about the costs of free Slurpees here: https://brainly.com/question/9019784