On December 1, 2015, Calibre Inc. sold machinery to a customer for $20,000. The customer could not pay at the time of sale, but agreed to pay 8 months later, and signed a 10-month note at 9% annual interest. What was the total amount of cash collected by Calibre at collection's day? Select one: O $21,500 $21,200 $22,000 $21,800 $18,200