Answer: The correct answer is $1,440.
Explanation: In order to solve this problem you need to divide the total amount of receipts by 1.06. The number 1.06 represents the cost of the products plus 6% interest.
When dividing the total amount $25,440 by 1.06 the answer is $24,000, which represents the amount of the sales. The difference between $25,440 and $24,000 is $1,440, which is the amount of the sales tax. You can then double check your work to make sure that it is correct by multiplying the total sales of $24,000 by 6% to make sure that you have the correct total. $24,000 x .06 = $1,440.