PLSSS HEL ASA I WILLL GIVE BRAINLIES

If f(x) = -2x - 1, find f(4)

f(4) = -2x4-1 = -9

Step-by-step explanation:

we switch the X  with 4 so it will be -2x4 -1

which will be equal -9  

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

i think u have 12 apples sorry again i don't really know if it correct i'm just tryna hrlp people out.