Convert the percent sales tax into decimal, and multiply it by the cost of the outfit
6.75% → 0.0675
$54.50 × 0.0675 = $3.67875
Add the sales tax to the original price
$54.50 + $3.67875 = $58.17875
Rounding the answer to the nearest cent, the total amount of her purchase is $58.18.
