Please help me :(:(:(:(:(:(

#9=-8, #10= -18, #11=-20

Step-by-step explanation:

For these, you need to remember that a positive*a positive is always positive, a negative * a negative is always positive, and a negative * a positive is negative.

So just do 2*4, 6*3, and 4*5 and add a negative in front of them.  

the answer is true.

step-by-step explanation:

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