Answers:

1) A = { x : x > 4, x ∈ N } 

X is natural number greater than 4. 

So, A = { 5,6,7,8,9,.......}

2) B =  { x : -1 ≤ x ≤ 3, x ∈ W }  

X is greater or equal to -1 but less or equal to 3.  

So, B={-1, 0,1,2,3}

3) C = { x : x < 7, x ∈ Z }

 X is an integer less than 7.             

So, C={...., 0, 1,2,3,4,5,6}

4)  D = { x : 0 ≤ x < 1, x ∈ W} 

X is a whole number greater or equal to 0 but less than 1.  

So, D= {0}

5} E = { p : p ≤ 5  , x ∈ N }   

X is a natural number less than or equal to 5.  

So, E = {1,2,3,4,5}