ANSWER: B
EXPLANATION: 
Perimeter = L + L + W + W
Perimeter = 12 + 12 + 5 + 5
Perimeter = 34
        
             
        
        
        
If the question is how much Cody will jog to save ratio 4miles:3 miles
The ratio is 

We can just multiply 1 miles by ratio to see how much Cody will jog, so

 miles 
The result is 

 miles
 
        
        
        
√ (1/144) = 1/12 
Because √1 = 1 ; √144 = 12 
⇒ C