If a relational model was constructed from the ERD above, which of the following would be attributes in the relation Invoice? (select all that apply)

If a relational model was constructed from the ERD , which of the following would be attributes in the relation to Employee? (select all that apply)

If a relational model was constructed from the ERD, how many relations would there be in total?

Tech Help2U is a technical support company providing onsite hardware support to small businesses in Brisbane. They would like you to create a database to store records about the work that they do. The use case for their business has been modeled in the ERD below. name Contacts firstName lastName phoneNumber position email 1..3 < Have 1..1 clientNo Client companyName industry address [1..n] < Request 1..1 0..n Jobs jobNo status [Started, Complete] notes 1..n 0..n 1..1 Managed By > dateFrom date To Completed By > Have > 1..n 1..n employeeNo name Employee firstName lastName phoneNumber [1..3] gender [M, F] DOB Role [Sales, BA, Design] invoiceNo 1..n amount Invoice status [Due, Overdue, Paid]