FUNYYZOWide Leg Pants Women's High Elastic Waisted in The Back Business Work Trousers Long Straight Suit Pants

what is the difference between regular and regular fit?

Are the tall long enough for someone 5'9"?

What's the difference between the Black "THIN" and Black "THICK"? Materials and material percentages are exactly the same. Please advise.

How should these be washed?