A little more info please?
        
                    
             
        
        
        
Answer: 50 and 900 is correct 
Step-by-step explanation:
50 and or 100
 
        
             
        
        
        
Answer:
20=4 weeks
40=8 weeks
60=12 weeks
80=16 weeks
 Hope I helped :)
        
             
        
        
        
15 should be greater than (-3w) becuase whatever you times with -3 it'll equal negative something so it's 15.