Answer:
i think he has 5 friends
Step-by-step explanation:
sorry if im wrong
 
        
                    
             
        
        
        
Answer: i would say 60 cm sorry if im wrong i think your missing a number
Step-by-step explanation:
 
        
             
        
        
        
4 years=48 months
A new car costs 25,000, but she will get 13,000 for her used car as long as she takes good car of it. If she takes good care of her used car and gets 13,000 for it, she will only need to save 12,000 total. We can divide 12,000 by 48 to find out how much Courtney should save minimum each month to afford her new car. 12,000/48=250
You can check to see if this is correct by multiplying 48*250=12,000. Paying 250 for each month of the 48 months will equal the $12,000 that Courtney needs.
Courtney needs to save at least $250 per month to afford her new car in 4 years. 
I hope this helps :)
 
        
             
        
        
        
Answer:
1)20 000 000×12cm
 240 000 000/100m
240 000 0/1000
2400km
31.6--1580×100×1000
31.6--1580 00 000
31.6/31.6--1580 00 000/31.6
1:5000000