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This image shows a toy invoice database. Assume these are the data from entities in a Toy Invoice Database. This database has the following tables.

This image shows a toy invoice database.

Assume these are the data from entities in a Toy Invoice Database. This database has the following tables.

Products: The attributes are ProductNumber, ProductName, and ItemPrice

Invoices: The attributes are Invoice and DateSold

Vendors: The attributes are VendorNumber and Vendor

Orders: The attributes are Invoice, VendorNumber, ProductNumber, and QtySold

Answer the following questions regarding keys, data integrity, and relationships that would need to be established.

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