Question

What is the cost of 1 gallon of oil before the tax is added?

Answer 1

Firstly, let's assume that the cost of 200 gallons of oil was x before the tax was added. So:

`1.08x = 425.52 \\ x = (425.52)/(1.08) \\ x = 394`
Before the tax was added, the cost of 200 gallons was $394. Now let's find the cost of one gallon of oil.


`394 / 200 = 1.97`
Thus, the cost of one gallon of oil before the tax was added is $1.97