Answer:
$30
Explanation:
To start off, we know that cardigans have been reduced to a price of $15. This price is 50% of the original price. We also know that 50% is another way of saying 1/2. This means that the price of the cardigans is half of what it used to be.
To solve, simply multiply $15 by 2 as shown below:
$15 x 2 = $30
The original price of the cardigans was $30.