What is the ellipsis? What is it used for in Sets?

Are the two sets equal? Show the shaded regions on the Test paper: a.

Are the two sets equal? Show the shaded regions on the Test paper: a.

Are the two sets equal? Show the shaded regions on the Test paper: a.

What is the ellipsis? What is it used for in Sets?

List all the subsets of the set: L={M, D, T}

How many subsets does the set  have? (Show work on paper)

Bony projections lingual of the mandibular premolars are called:

The sulcus epithelium:

Lining mucosa is characterized by: