Answer: The correct answer is $10,000.
Explanation: When Jackson Ski Equipment made the purchase the terms were 2/10, net/60. This means that there is a 2% discount if they pay within 10 days, and the entire balance needs to be paid with 60 days. Since they are paying the invoice at 20 days they do not receive the 2% discount, so must pay the total price of $10,000.