You have also identified the following business rules:
1. Rentals can have many customers assigned but must have at least one.
2. A car must be assigned to one and only one rental type.
3. A customer can rent one or more cars at one time.
4. A car can be assigned to one customer but need not be assigned to any customer.
Your job is to be completed in the following phrases:
1. Develop and describe the entity-relationship diagram.
Expert Answer
https://d2vlcm61l7u1fs.cloudfront.net/media%2F0ea%2F0ea012d5-0fb3-46bf-938e-55e0a8bc6982%2FphpGPeaT0.png
1 customer can rent 1 or multiple (M) cars. These are identified based on customer ID and Car number.
Car is assigned to only
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