Suppose one of the suppliers to Ascension Health offers terms of 2/15, net 30.

. How many days does the business have to pay its bill from this supplier in order to get the discount?

. What is the approximate cost of the costly trade credit offered by this supplier?

Note: Assume 360 days per year; format for 'a' is just the number, x or xx , (the word 'days' is not required) ; format for 'b' is xx.x%.