At Stores Unlimited, you will find everything you need at a 30% discount. A set of four bath towels is marked $25. How much will you pay for the set with a 5% sales tax?

1 Answer
Jul 3, 2017

$18.38

Explanation:

First, find the discount price (since tax comes last).

Because you have a 30% discount, you are paying 70% of the original price. This can be multiplied like so:
x=$25*(1-0.3)
x=$25*(0.7).
x=$17.5

Now comes the sales tax. Because it is at 5%, you are paying 100%+5% OR 105% of the discount price. Now multiply them:

$17.5*1.05=$18.375

Rounded to the nearest hundredth: $18.38