12.5 - 5.3 = 7.2 gallons
7.2 gallons x $1.30 = $9.36
$9.36 is your answer
Add 4x to both sides of the equation to get the equation into a form that can be graphed. rearrange the equation to regular form into y= -x^2 -4x +7 and put it into ur graphing calculator. look for the halfway of the parabola that would fold it in half
Answer:
yes
Step-by-step explanation:
they are equivalent because 1 is half of 2 and 2 is half of 4
