&. LETme at Sale_ Milicic biotics currently Sells all at Its frozen dinners cash on delivery but DE - LIEVEE It can Increase sales by Offering supermarkets I month of free credit. The price per Zaitun is I'll and the cost per carton is $40!. a. If unit sales will increase from 1. and cartons to 1. 050 per month, should the firm offer the credit ?" The interest rate is 1 percent per month, and all customers will pay their bills . b . What if the interest rate is 1 .; percent per month? C. What if the Interest rate is 1.3 percent per month . but the firm can offer the credit only* {{ { Special deal to new customers , while old customers will continue to pay cash on de