Problem page rita drive 420 miles using 18 gallons of gas. at this rate, how many gallons of gas would she need to drive 357 miles

The answer is 8,330 
because you have to take 420 and divied it by 18 and youll get 23.33333 then you times it to 357 

hope you are satisfied 

X^2 - 4x +(4/2^2) + y^2 + 8y + (8/2^2) = -4 + (4/2^2) + (8/2^2)(x + 2)^2 + (y + 4)^2 = -4 + 4 + 16your center is (-2, -4) and the radius is the sqrt of -4 + 4 + 16 which is 4

D. i think it is the savings