Answer:
Subscription based
Step-by-step explanation:
This gym uses the subscription based business model. This type of model states that a user must pay before hand for an entire period whether they use it or not.
This offers the used that the service or product will be available whenever they need it at the point that they need it.
In addition, the business will gain by subscribing more users than they have product or services since they will not all be demanding the goods and services at the same time.