Answer:
-83
Step-by-step explanation:
x+(x+1)=number 
x+(x+1)=-165
2x+1=-165
-1         -1
2x=-166
/2     /2
x=-83
We can check our work by adding -83+-82=-165 because -83 would be the smaller number. 
-83.
 
        
             
        
        
        
The answer is 35 different groups.
        
             
        
        
        
Answer:
2/3 +9.26 = 0.6666+9.26=rational