The stores ranked from the cheapest to most expensive sale price for the watch is : A, D, B, C.
A discount reduces the price of an item. The formula that can be used to determine the price after a discount is: initial price x (1 - discount rate)
Price after discount
Store A: $129.99 x (100 - 25%)
$129.99 x 0.75 = $97.49
Store B: $119.99 x (100 - 15%)
$119.99 x 0.85 = $101.99
Store C:
Price after the first discount = $115 x (100 - 5%)
115 x 0.95 = $109.25
Price after the second discount = $109.25 x (100 - 5%)
$109.25 x 0.95 = 103.79
Store D:
$109.99 x (100 - 10%)
$109.99 x 0.90 = $98.99
To learn more about how to calculate discounts, please check: https://brainly.com/question/9350849