Data Sufficiency

In a certain state, gasoline station compute the price per gallon p, in dollars, charged at the pump by adding a 4% sales tax to the dealer's price per gallon d, in dollars, an then adding a gasoline tax of $ 0,18 per gallon. Which of the following gives the dealer's price per gallon d in terms of the price per gallon p charged at he pump?


* d= p-0.22

* d=p/1.22

* d= p/1.04 - 0.18

* d= p-0.18/ 1.04

* d= p-0.04/1.18