Final answer:
After applying a 30% store sale discount to the original $350 dress and then using her 10% discount card, Alison pays a final price of $220.50 for the dress.
Step-by-step explanation:
To calculate how much Alison pays for her dress after the sale discount and the additional discount card reduction, we follow a two-step process. Initially, we apply the store's sale discount to the original price to find the post-sale price. Once that is determined, we utilize Alison's personal discount card to reduce the price further:
- Dress original price = $350
- Store Sale Discount (30%) = $350 × 0.30 = $105
- Price after store discount = $350 - $105 = $245
- Alison's Discount Card (10%) = $245 × 0.10 = $24.50
- Final Price = $245 - $24.50 = $220.50
Therefore, with the combined discounts from the sale and her discount card, Alison pays $220.50 for the dress.