F(x) = x^2 + 2

F(x + h) =

x^2+2xh+h^2+2

Step-by-step explanation:

F(x+h)=(x+h)^2+2 = x^2+2xh+h^2+2.

use an equation of ratios to determine the amount of gas needed to fill the tank.

    0.2             0.8

  =    

288.75             x

                                                              231 gal

so, 0.2x = (0.8)(288.75 gal), and x = = 1155 gal.

                                                                0.2

it would take 1155 gal. to fill the tank.

the cost would be

1155 gal         $3

* = $3465   (answer)

      1           1 gal

hope this you

inverse operation of addition