Enter an equation in standard form to model the linear situation. A barrel of oil was filled at a constant rate of 6.7 gal/min. The barrel had 12 gallons before filling began.

i think it's ф or x=6,-6

step-by-step explanation:

-x^2=-36

x^2=-36

ф

or

if you mean by : -(x^2)=-36

it'll be: x^2=36

x=6,x=-6

hope it'll ! have a good day!

you for asking!

answer: its the third option.

step-by-step explanation:

i just took the test.