need 13 and 14

13. A company had sales of 18,000 units at $25 per unit last year. The marketing manager projects a 40% increase in unit volume sales due to a 20% decrease in the price. What is your net dollar sales projection for the year? What is your net dollar sales projection for the year if returned merchandise will represent 3% of total sales? 14. What is your effective rate of interest if you borrow $3,000 for 40 days at a cost of $40 interest? How would the effective rate of interest be impacted if the loan was for 30 days? What if it was for 50 days