Contemporary Mathematics for Business and Consumers 7th Edition by Robert Brechner ,George Bergeman

Exercise 13

The Apollo Company received an invoice from a vendor on April 12 in the amount of $1,420. The terms of sale were 2/15, n/45. The invoice included shipping charges of $108. The vendor sent $250 in merchandise that was not ordered. These goods will be returned by Apollo. (Remember, no discounts on shipping charges or returned goods.)
a. What are the discount date and the net date?
b. What is the amount of the cash discount?
c. What is the net amount due?