SQL Homework, and Im still getting errors. Not sure why, but says I am missing a parentheses somewhere in the first table and the last table has some sort of conflict. Can someone please check my work and see where I went wrong and why? Thanks!

create table Employee( EmpID char(10), Name varchar2(50), Salery char(10), Address varchar2(50), HireDate date(dd/mm/yyyy), Phone char(10), primary key(EmpID)) ;

create table Inventory( ProductID char(10), ProductName varchar2(50), UnitPrice char(10), CurrentInventory char(10), MonthlySales char(10), PrecentOfPrice char(10), Primary key(ProductID)) ;

create table Transaction( TransactionID char(10), TransactionCode varchar2(50), Primary key(TransactionID)) ;

create table Sales( EmpID char(10), ProductID char(10), CustomerID char(10), TransactionID char(10), UnitsSold char(10), PO# char(10), Date date(dd/mm/yyyy), Primary key(CustomerID), Foreign key(EmpID) References Employee(EmpID), Foreign key(ProductID) References Inventory(ProductID), Foreign key(TransactionID) References Transaction(TransactionID)) ;

Insert into Employee values ('001','John Smith','35500','123 Main Street, Olympia WA','05/05/2018','1234567890'); Insert into Employee values ('002','Jane Doe','36000','259 Orange Ave, Olympia WA','09/16/2018','2355695485'); Insert into Employee values ('003','Stan Lee','45000','958 State Street, Olympia WA','04/05/2016','1232344567'); Insert into Employee values ('004','Peter Snow','45250','259 Capital Way, Seattle WA','04/05/2016','9876543211'); Insert into Employee values ('005','Tony Stark','37500','599 Apple Way, Lacey WA','07/07/2017','8795642312'); Insert into Inventory values ('010','Pride and Prejudice','15.99','56','12','50'); Insert into Inventory values ('011','Dune','17.75','48','8','65'); Insert into Inventory values ('012','Jurrasic Park','19.99','42','10','50'); Insert into Inventory values ('013','Target Hiroshima','21.99','12','2','45'); Insert into Inventory values ('014','One Second After','16.99','40','10','50'); Insert into Transaction values ('001','Cash'); Insert into Transaction values ('002','Credit'); Insert into Transaction values ('003','Check'); Insert into Sales values ('001','010','100','002','1','456123','05/08/2019'); Insert into Sales values ('002','012','101','002','1','456124','05/09/2019'); Insert into Sales values ('003','011','102','001','1','456125','05/10/2019'); Insert into Sales values ('004','014','101','003','2','456126','06/02/2019'); Insert into Sales values ('005','013','103','002','5','456127','06/04/2019');