Answer:

Step-by-step explanation:
<u>Step 1: Add 4 to both sides
</u>



Answer: 
-2 is the answer because you do the change of y over the change of x.
The answer is D
You just move all numbers to the left and set it equal to 0
And then you add all same variables together
After that you use the quadratic formula
All you have to do is divide 190 liters by 3.8 liters. To get the calculated amount of gallons.