Answer:
$51.05
Step-by-step explanation:
In order to compare these, you would need to multiply the 5 gallon to match the 25 gallon. in which you would multiply by 5. because you multiplied the 5, you also need to multiply the 11. when you multiply 11 by 5 its 55. so your total comparison would be $55 for 25 gallons vs $51.05 for 25 gallons. Obviously the cheaper one is better.
First lets write out the equation:
-8x + 2x - 16 < -5x + 7x
Lets collect the x values
-6x - 16 < 2x
-8x - 16 < 0 (subtract both sides by 2x to get all the x's on one side)
-8x < 16 ( add both sides by 16 to get all the x's alone)
x < -2 ( divide both sides by -8 to get what just x is)
So x < -2
Sorry, i wish i could help, but really the only thing i know is that 4 is 2 by 2 so using another equation to try to prove otherwise is irrational in itself
