I would definitely be mean because I’m so average and basic lol
        
             
        
        
        
Answer:
X = 25 because 25 · 3/5, you will get 15
 
        
             
        
        
        
1/10 of 1,700,000 km² is 170,000 km² .
        
             
        
        
        
Sorry for taking so long.  Try typing in the whole question on google you will get lots of websites, it wasn't letting me post any here. 
All the websites have $45 for the second sentence, but idk if they could help. 
And when you figure it out let me know because it was really bothering me. lol
        
             
        
        
        
I think it’s c not so sure tho