Final answer:
After applying a 30% store-wide discount and a 10% personal discount card to the original $350 dress, Alison pays a final price of $220.50.
Step-by-step explanation:
The question involves determining how much Alison pays for a dress after applying a store-wide sale discount of 30% and an additional personal discount card of 10%. To find the final price, we need to calculate the discounts sequentially.
Original price of the dress: $350
Store-wide discount (30% of $350): $350 x 0.30 = $105
Price after store discount: $350 - $105 = $245
Personal discount card (10% of $245): $245 x 0.10 = $24.50
Final price after all discounts: $245 - $24.50 = $220.50