A retailer received an invoice of RO 2500 with the terms 3/12, n/30 ROG on January 25th. The goods were received on January 28th. What amount will the retailer pay if he pays the bill on 8th February. O a. RO 2500 O b. RO 2475 Oc. RO 2375 O d. RO 2425 Karen's sales for a month is 36,000 and is paid 8% commission on sales. He had a draw of 850 RO. Find his gross earnings. a. 2030 RO O b. 2948 RO O c. 2880 RO O d. 3730 RO Richard purchased a car which had a selling price of 7200. He paid 30% down and agreed to pay 240 RO a month for 24 months. What is the Annual Percentage Rate? a. 12.28% O b. 24.28% O c. 19.28% O d. 14.28%