Answer:
a 
Step-by-step explanation:
add all together
 
        
             
        
        
        
Answer:
It would be A. 
Step-by-step explanation:
Because, 5 x 0 is 0, 5 x 1 is 5, 5 x 2 is 10, and so on. Its really just counting in 10s.
 
        
             
        
        
        
The first car consumed 21 gallons while the second car consumed 49 gallons. here is the how it's done. 
for the first car gallons consumed is 15/50x70= 21 gallons
the second car consumed 35/50x70=49 gallons
        
             
        
        
        
Answer:
C) 20 Speeders
Step-by-step explanation:
5 divided by 2 is 2.5
there are 2.5 speeders per hour
over the span of 8 hours just multiply 
8x2.5=20
 
        
             
        
        
        
Answer: $12.4
Step-by-step explanation:
34.72/2.8 hours = 12.4 dollars/hr