Final answer:
Gabriela paid $50.4 with the 30% discount on the regular price of $72.
Step-by-step explanation:
To find out how much Gabriela paid with the discount, we need to calculate 30% of the regular price and subtract it from the regular price. First, we find 30% of $72 by multiplying 72 by 0.3: 72 * 0.3 = 21.6. Next, we subtract the discount amount from the regular price: 72 - 21.6 = 50.4. Therefore, Gabriela paid $50.4 with the discount.
Learn more about Calculating discounts on the regular price of an item