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.
The equation would be 16.80(1-0.05)=11.50+x. To get your answer multiply 16.80 by the one and the 0.05. this gives you 16.80-0.84. Subtract. Then you'll have 15.96. Subtract 11.50 from 15.96 and this will be the cost of the cat food. $4.46.
