Fred paid $52 for x gallons of gas. if each gallon of gas costs the same, what is the expression for the cost of one gallon of gas?
52−x
52x
52x
52+x

The correct answer is not on the  list of choices.

It must be either the second choice or the third choice,
and you must have copied it wrong.

                  ('x' gallons) times (cost of 1 gallon)  =  $52

Divide each side by ('x' gallons) :

                                               Cost of 1 gallon = $52 / x .

D

than do 23.50 times 18 and then divide your answer by 100 than you will get x.