Pls i don’t understand and i’m being timed

Step-by-step explanation:

a.-1.5

b. -1.5 x 2x

c. -45

last one i don't understand

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

s

step-by-step explanation: