You are running a fuel economy study. One of the cars you find is blue. It can travel 30 and one half miles30 1 2 miles on 1 and one fourth gallons1 1 4 gallons of gasoline. Another car is red. It can travel 25 and three fifths miles25 3 5 miles on four fifths gallon 4 5 gallon of gasoline. What is the unit rate for miles per gallon for each car? Which car could travel the greater distance on 1 gallon1 gallon of gasoline?
  
Blue car: 30.5 / 1.25 =24.4 miles per gallon
Red car: 25.6/0.80   =32 miles per gallon
You can easily see that the Red car travel farther on 1 gallon of gasoline.
 
        
             
        
        
        
Answer:
y= 6971 -7 x  OR y = -7x + 6971
Step-by-step explanation:
the 6971 is the original number you started with, you are now decreasing by 7, so you use the value of -7. The x is the number of years that pass by, so the variable x affects the number 7 because it says decreases by 7 per year. The x does not go with 6971 as that number doesn't get directly affected. 
 
        
                    
             
        
        
        
Unit rate is miles per 1 gallon
50mi/2 and 1/2 gallon
50mi/2.5 gallon
times 10/10
500mi/25 gallon
20mi/1gallon
answer is 20mi/gal
        
             
        
        
        
Answer:
I DESERVE BRAINLIEST
Step-by-step explanation:
C=5.5*2*PI
C=11*pi
C=34.5575191895
C= 34.56
A=pi*5.5^2
A=30.25*Pi
A= 95.0331777711
A= 95.03