Answer:
9 (5e - 3f)
Step-by-step explanation:
45e -27f
45e = 9*5*e
27f = 9*3*f
The common factor is 9
9*5*e -  9*3*f
9 (5e - 3f)
 
        
                    
             
        
        
        
Answer:
6:00 a.m.
Step-by-step explanation:
 
        
             
        
        
        
This isn't really mathematics but I can give you an answer.
Assuming, it's in the dark (cuz in the light, why would you use flash), a person in the photograph can gain a red-eye (in the photo).
The only one I can think of is red eye.
 
        
             
        
        
        
Answer:
2400 words
Step-by-step explanation:
80 = 2 min
60min ÷ 2min = 30min
30 × 80 = 2400 words
 
        
                    
             
        
        
        
math teacher said its associative