Cristiano Ronaldo 'instructs agent to seal transfer' amid Man Utd and Real Madrid links
        
             
        
        
        
Answer:
D)
Step-by-step explanation:
Because
a)  10 = 2(5) = 10
b) 10 = 5 + 5 = 10
c) 10 = 15 -5 = 10
d) 10 = 5 - 5 = 0  the result is not equivalent
 
        
                    
             
        
        
        
angle AOB = 132 and is also the sum of angles AOD and
DOB. Hence 
angle AOD + angle DOB = 132°    ---> 1 
angle COD = 141 and is also the sum of angles COB and BOD. Hence 
angle COB + angle DOB = 141°    ---> 2
Now we add the left sides together and the right sides of equations 1 and 2
together to form a new equation. 
angle AOD + angle DOB + angle COB + angle DOB = 132 + 141       ---> 3 
We should also note that: 
angle AOD + angle DOB + angle COB = 180° 
Therefore substituting angle AOD + angle DOB + angle COB in equation 3 by 180
and solving for angle DOB:
180 + angle DOB = 132 + 141 
angle DOB = 273 - 180 = 93° 
 
        
             
        
        
        
I’m not good at math srry but hope someone answers the is for you