What type of set is denoted as either { } or ∅?

Find n(A) when

A = {14, 16, 18, 20, 22, 24}

If A = {1, 3, 5, 7, 9} and B = {2, 3, 5, 7}, what is A ∪ B?

If A = {1, 3, 5, 7, 9} and B = {2, 3, 5, 7}, what is A ∩ B?

If

P = {0, 1, 2, 3, 4}, Q = {4, 6, 8}

R = {6, 12, 18} Then what is (P ∩ Q) ∪ (Q ∩ R)?

From the above Venn diagram, what is the set S ∩ T?

From the above Venn diagram, what is the set (S ∪ T) ∩ V?

From the above Venn diagram, what is the set S' ? Look at ALL of the Universal set called "U."

The image represents which of the following?

Which of the following represents the shaded region?