Answer:
hmmmmmmmmm
Step-by-step explanation:
$12?
i think
0.2642 gallons is your amazing answer<span />
When you have the same denominator. Other than that have different denominators will not be possible.
Symmetry is the same as the one side of the graph but it is fliped on the X-axis
-4x^4 - 15x^2 + 1 - 19/x^2 is your answer
Hope I helped :)