2people saved half of my life and i am full but the other half is remaining answer the 8th question. the figure is also included for ur needs i am trying to work it out but still not getting it

First find the area of one triangle using Heron's formula:

where:

Thus

Then the total area is:

and the total costs is:

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

what is the graph

step-by-step explanation: