Presented below are selected transactions of molina company. molina sells in large quantities to other companies and also sells its product in a small retail outlet.

march 1 sold merchandise on account to dodson company for $10,400, terms 3/10, n/30.
3 dodson company returned merchandise worth $200 to molina.
9 molina collected the amount due from dodson company from the march 1 sale.
15 molina sold merchandise for $1,000 in its retail outlet. the customer used his molina credit card.
31
molina added 1.8% monthly interest to the customer’s credit card balance.