Question

You buy a container of cat litter for $13.75 and a bag of cat food for xx dollars. The total purchase is $20.80, which includes 4% sales tax. Write and solve an equation to find the cost of the cat food.

Answer 1

$x = 20.80 \times (100\% - 4\%) - 13.75 \\ x = 20.80 \times 96\% - 13.75\\ x = 6.218$


After rounding off, the cost of the cat food is $6.22.

Hope this helps. - M