C)132
All you do is find the area of each flat surface and add them together.
(rectangle) A=w×h
(triangle) A=w×h/2
        
             
        
        
        
Answer: The cats cost more
also there is a typo
Step-by-step explanation:
I bought 1 dog and 3 cats a total cost of $7.75. the three cats cost more so in all the cats must cost 3.56$
 
        
             
        
        
        
use the distributive property 
combine alike terms 
add the negative number to the other side 
combine alike terms 
then divide on both sides to get the variable by itself 
 
        
             
        
        
        
Answer:
I think its 21 but iam not sure about the rest