Let A be the set of whole numbers while set B is the set of counting numbers. What represents A∪B?

Let A={x | x, x Ԑ R, x>= 0} and B={x | x, x Ԑ R, x<= 0}. What represents A∪B?

The Venn Diagram below shows the cardinality of sets A and B. Which of the following is true? 

The Venn Diagram below shows the cardinality of sets A and B. Which of the following is true? 

Let A={0 and negative integers} and B={natural numbers}. What represents A∪B?

The Venn Diagram below shows the cardinality of sets A and B. Which of the following is true? 

Let A={-3,0,3,7} and B={1,2,3,4}. What represents A∪B?

Let A = {x | x, x Ԑ N, 3<x <5} and B = {x | x, x Ԑ R, x =< 0}. What represents A∪B?

Let A={1,2,3,4} and B={2,4}. What represents A∪B?

Refer to the Venn Diagram below. Which of the following represents the shaded region?