Answer:
312
Step-by-step explanation:
Since the ratio is 7:8, mark it as 7x:8x. 
Now, they said that the first length is 273. Solve the equation:
7x=273
x=39
Substitute it into 8x. 39*8=312. That's your answer.
PLS MARK BRANILIEST!!!
 
        
             
        
        
        
35
this is the correct answer if you're on usatestprep
        
                    
             
        
        
        
Answer: The top left one is -3, 6     bottom right is -6, 3
Step-by-step explanation:
 
        
             
        
        
        
Step-by-step explanation:
answer: 135 degrees for the missing side