the answers of the 8 Q pls

PROBLEMS AND APPLICATIONS 1. What is interest rate and how is it determined by conventional banks? 2. What is the importance of interest rate in the Western economy? 3. How are the profit margin, mark-up, and loan commissions determined by the Islamic banks? 4. Why is interest prohibited in Islamic banking business transactions? 5. Is the "no-interest rate Islamic finance concept" in theory or practice? 6. Is the term "zero opportunity cost of lending" feasible? 7. Why was interest rejected on religious ground? 8. How did the Islamic banks deal with the interest rate dilemma in their transactions