Hey there, 
2w+10 would be the best choice here. 
Sorry if I'm wrong, good luck!
:)
        
             
        
        
        
Answer:
40
Step-by-step explanation:
why? because 40x40=1600
 
        
             
        
        
        
A(b-c)=d solution is number 2. Attachment added
 
        
        
        
Answer:
642 miles
Step-by-step explanation:
Distance of Midville from their home = 214 miles
Walesburg is 3 times as far.
How far is Walesburg from their home?
Distance of Walesburg from their home = 3 × Distance of Midville from their home
= 3 × 214 miles
= 642 miles
Distance of Walesburg from their home = 642 miles
 
        
             
        
        
        
Answer:
6
Step-by-step explanation:
Solve x then y after..