Please help me answer number 4-5 asap. Thank you

4. The ideal organization of each company depends heavily on the type of business and its customers. Every company has to imagine and implement a model that will safeguard its financial interests while maximizing sales. In your own words, what is meant by this statement. How does this thinking impact the organization of the credit department? 5. Explain the relationship between the product profit margin and the amount of sales necessary to recover losses from non-collection of accounts receivables. Explain the implication of this relationship to the grant of credit