Have you tried multiplying 5(3)+2(2)+1?
15 + 4 + 1 = 20 ? 
Im sorry I'm not real good with math. 
 
        
                    
             
        
        
        
I guess it’s 2.ace and diamond
        
             
        
        
        
Answer:
25/7 acres or 3 4/7 acres
Step-by-step explanation:
The sold 2/7 of the land.
1 - 2/7 = 7/7 - 2/7 = 5/7
They have 5/7 of the land left.
5/7 of 5 acres = 5/7 × 5 acres = 25/7 acres = 3 4/7 acres
 
        
             
        
        
        
862,840 is rounded to 900,000