Ducky

I need a step by step explaination of the example in my book. Find the domain of f(x)=(7x)/(x-8)

Mr. Churchill makes $50,000 a year. Of this income, 1/7 goes towards food and beverage. Of this amount, ¼ goes towards Coca-Cola products. 1/3 of this amount is spent on the disgusting diet Coke for Mrs. Churchill. The other 2/3 is spent on the always del...