Final answer:
To determine the sale price of the mattress before taxes, first calculate the discount amount by multiplying the list price ($2300) by the discount percentage (30% or 0.30), which equals $690. Subtract this discount from the list price to get the sale price, which is $1610.
Step-by-step explanation:
To calculate the sale price of the mattress before taxes, we need to apply the 30% discount on the list price. The list price of the mattress is $2300. A 30% discount can be calculated by multiplying the list price by the decimal equivalent of the discount percentage. Since 30% is the same as 0.30 in decimal form, we'll do the following calculation:
List Price × Discount Percentage = Discount Amount
$2300 × 0.30 = $690
To find the sale price, we then subtract the discount amount from the list price:
List Price - Discount Amount = Sale Price
$2300 - $690 = $1610
Therefore, the sale price of the mattress before taxes is $1610.