4. Let us consider a customer who wants to buy an item produced by us. Let us suppose that the selling price of the product is \\( \\$ 1,420 \\). The production cost of that item is \\( \\$ 1,120 \\). The customer wants to buy that item by writing a check which is due after five months (he/she wants to pay after five months). Should we extend the trade credit or not given the annual interest rate is \17