The answer to the question is letter "D. Commutative Property of Addition". The property states that if there are two numbers which we may represent by a and b, the value of a + b is equal to the value of b + a. The given, 8 + 5.3 = 5.3 + 8 is an example of this property.
        
                    
             
        
        
        
Answer:
3 is 60°, as well as 5 and 7 and the rest are 120°
Step-by-step explanation:
 
        
             
        
        
        
Answer:
PQ:80
QR:160
PR:120
Step-by-step explanation:
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<em>hope it helps </em>
<em>have a great day!!</em>
 
        
             
        
        
        
Can you please take another picture that is closer to the diagram, it's quite blurry.