The next time you go to put gas in your car, you forget to check the price per gallon. you paid $7.25 for 2.9 gallons of gas. how much did you pay per gallon? show all work and include labels.

Step-by-step explanation:

2.9 divided by $7.25 is 2.5

$2.5 per gallon

$2.50 per gallon

Step-by-step explanation:

To get the answer, I did $7.25 divided by 2.9. This is to get how much money per 1 gallon. The answer is $2.50 per 1 gallon.

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation: