the answer is x is greater then -7
to find this add 4 to each side
then divide by -2.
since you divided both sides by a negative the symbol flips and you get x is greater then -7
 
        
                    
             
        
        
        
Answer:
100
Step-by-step explanation:

This can be turned into:
  (if we add the numbers inside the brackets)
  (if we add the numbers inside the brackets)
Following PEDMAS, this becomes:
 which equals
 which equals 
∴   
 
 
        
             
        
        
        
So 2:5 means that 5/7 animals are cats and 2/7 are dogs. I believe if you divide u will get your answer. 5/7 * 7/2 = 1.25x the number of dogs
        
             
        
        
        
I believe the answer is $48 because 6 * 2 is 12 and 12 * 2 is 24 and 24 * 2 is 48, thus 48$. Please feel free to check my work, though.