Transform the following 2 relations into Domain/Key Normal Form (DK/NF). Make and state the appropriate assumptions about functional dependencies and domains.
A. EQUIPMENT (Manufacturer, Model, AcquisitionDate, BuyerName, BuyerPhone, PlantLocation, City, State, ZIP)
B. INVOICE (Number, CustomerName, CustomerNumber, CustomerAddress, ItemNumber, ItemPrice, ItemQuantity, SalespersonNumber, SalespersonName, Subtotal, Tax, TotalDue)