Answer:
i think that answer is -21y^8 
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
<u><em>Blue Car:</em></u>  (31 1/2 miles)/(1 1/4 gallons)
(63/2) miles / (5/4) gallons
(63/2)*(4/5) = <u>25.2 miles/gallon.</u>
<u><em>Red Car:</em></u>  (27 1/5 miles)/(4/5 gallon)
= <u>34 miles/gallon.</u>
The Red Car will travel the furthest.
 
        
             
        
        
        
The equation of the line is 
y = 5x-11
        
             
        
        
        
2 solutions, the root to the equation is the same as the root to the solution also known as “double roots”
        
             
        
        
        
{[(8 - 3) * 2] + [(5 * 6) - 5]} / 5 =
= {[2 * 8 + 2 * (-3)] + 30 - 5} / 5 =
= [(16 - 6) + 25] / 5 =
= (10 + 25) / 5 =
= 35 / 5 =
= 7
Brackets make it look complex but it's not that bad at all :)