You have the definition of wages and salary reversed. Otherwise, you're correct.

We had to match the following. Are these correct?

Piecework: A fixed payment is received for each item produced or completed.

Commission: Employees are usually paid a retainer and a certain percentage or amount based on the value of goods they have sold.

Wages: Employees are paid a set amount per period regardless of the number of hours worked.

Salary: Earnings based on the amount of time worked.

I have a feeling some of them are incorrect, and have searched them, but am really confused.

Help please?

Thanks guys.