If there were no Saturday's or Sunday's how many weeks would there be in a year?

Question

I need to know because for a project I am working 5 days a week. I want to multiply how much I make to find out how much I make in a year.

Answer 1

Some years have 365 days, and some have 366 days.

Different years begin with different days of the week, too, under the present scheme.

So the question needs some clarification; what is the definition of a WEEK, when Sat & Sun do not exist?