Type in Exsel and show formulas please. Thanks.

Calculate simple interest (rounded to the nearest cent): 1. $16,000 at 3% for 8 months 2. $15,000 at 6% for 6 years 3. $50,000 at 7% for 18 months 4. On May 6, Dawn Kristal borrowed $20,000 at 7%. Dawn must pay the principal and interest on August 14. What are Dawn's simple interest and maturity value if you use the exact interest method? 5. What are Dawn Kristal's (Problem 4) simple interest and maturity value if you use the ordinary interest method