Answer:
Step-by-step explanation:
 
        
                    
             
        
        
        
I think that is D cus you take 10 off
        
             
        
        
        
Answer:
   40 minutes
Step-by-step explanation:
The least common multiple of 8 minutes and 10 minutes is ...
   LCM(8, 10) = 8·10/GCD(8, 10) = 80/2 = 40
The red and blue trains will arrive together again in 40 minutes.
 
        
             
        
        
        
138% is the combined answer of this equation
        
             
        
        
        
3/5x ≤ 10
5(3/5x ≤ 10)
3x ≤ 30
3x/3 ≤ 30/3
x ≤ 10