Answer:
b=14
Step-by-step explanation:
42 divided by 3 is 14
 
        
                    
             
        
        
        
C=(3.14)(15)
you multiply and get 47.1
        
             
        
        
        
Answer:
first one is not. parallel second one is not and the third one is
 
        
             
        
        
        
If a plane flies an average of 325 miles per hour, to find out 7 hours you will need to times 325 by 7. 
325 x 7 = 2275. 
therefore the flight for 7 hours was 2275 miles.