You buy a container of cat liter for $11.50 and a bag of cat food for x dollars. The total price is $16.80 which includes 5% sales tax. Write an equation to find the cost of the cat food.
6.14 . First to find the 10% first you just move the decimal one space to the left, by getting 1.68. After that you divide that by two and get 0.84. Next you add it to 16.80 and get 17.64. Finally subtract by 11.50.
