Of course A does because integers are positive and negative
        
             
        
        
        
Answer: 13.7
Step-by-step explanation:
 
        
                    
             
        
        
        
9514 1404 393
Answer:
   (c)  31°
Step-by-step explanation:
Angles 1 and 2 are congruent. Each is half the sum of the subtended arcs:
   ∠1 = ∠2 = (37° +25°)/2 = 31°
 
        
                    
             
        
        
        
10*30=300
10*4=40
6*30=180
6*4=24
add them up: 300+40+180+24=544