Without the discount percentage or sale price, it's impossible to determine the amount Christina will pay for the coffee table during the sale. Normally, you would subtract the discount amount from the original price to get the sale price.
To determine how much Christina will pay for the coffee table during the sale, we need additional information regarding the percentage of the discount or the sale price. Since this information is not provided in the question, it's currently impossible to calculate the final amount Christina will pay. Normally, this calculation would be done by applying the sale discount percentage to the original price to find out how much is reduced, then subtract that from the original price to get the new sale price. For example, if the table was on sale for 20% off, Christina would subtract 20% of $50 from the original price.
To calculate 20% of $50: $50 x 0.20 = $10 discount. Then you subtract the discount from the original price: $50 - $10 = $40 sale price.