I need help understanding how to solve this practice problem.

1. JC Penny Credit Decision: Assume that a supplier offered JC Penny merchandise totaling $50 million with the following trade credit terms: 2/10, n/90. JC Penny also has an available line of credit, carrying an interest rate of 7%. When should JC Penny make the payment to the supplier? a) Day 1 (when receiving the merchandise - get rid of the liability!) b) On the 10" day C) Day 45 (a good place in the middle) d) Day 90 e) Any day between day 1 and 90 would be just fine. Explain and support your answer:2. Buy-Side Analysts vs. Sell-Side Analysts:| a. Explain the difference between buy-side and sell-side analysts? b. Which type of analyst is more likely to intentionally bias his earnings forecasts or its stock recommendation (i.e. strong buy, buy, hold, sell, strong sell)? Explain why? c. For the analyst that is more likely to bias his forecast, what would you expect the direction of the bias to be? Optimistic or pessimistic? Explain your answers