Answer:
3,-1
Step-by-step explanation:
you go over to the left 3 and than you go down 4.
 
        
             
        
        
        
P-Q should be -11a^2+4b^2+ab
 
        
             
        
        
        
Answer:
Subset is part of set which is obtained from Universal set.
Step-by-step explanation:
Like for example :- 
A - ( 1,2,3,4,5,6,7,8) 
And B - ( 1,2 , 3) 
So we can say B is subset of A.
 
        
             
        
        
        
Answer:
{4, 4.5, 5, 5.5, 6, 6.5, 7} {0, 1, 2, 3, 4, 5, 6}. 4 ≤ h ≤ 7 0 ≤ d ≤ 6. 4 ≤ d ≤ 7. {4, 5, 6, 7}. 0 ≤ h ≤ 6 0 ≤ h ≤ 7