Annual credit sales of Nadak Co. total $362.6 million. The firm gives a 1.75% cash discount for payment within 10 days of the invoice date; 75% of Nada s accounts recen able are paid within the discount period. a. What is the total amount of cash discounts allowed in a year? (Enter your answer in millions rounded to 2 decimal places.) amount million b. Calculate the approximate annual rate o return on investment that Nadak 's cash discount terms represen to customers who take the disco n (Round intermediate calculations to 2 decimal places. Enter your answer as a percentage rounded to 1 decimal place (i.e., 32.1).) Assume a credi pe of S days and days a