1 answer:
            
              
              
                
                
Answer:
3
Step-by-step explanation:
Arnie jogs an average of 3 miles per day because over the course of 4 days, he jogs 12 miles and 12 miles divided by 4 days is 3 miles.
 
                                
             
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Answer:
Step-by-step explanation:
x= -3
 
        
             
        
        
        
Answer:
-5 1/x4
Step-by-step explanation:
 
        
                    
             
        
        
        
Joe is 15, 45-15=30 30/2=15
        
             
        
        
        
        
Answer:
the correct is D. 280
Step-by-step explanation: