I need answers to these questions on Finance.

1.If the yield on a 120 day T-Bill is 4.5%, what was the discount yield on this T-bill?

2. Apex issued a 90-day Commercial Paper for a yield of 11.25%. If the par value of the commercial paper was $10,000,000, what was the amount received by Beximco?

3. A 3 year bond that pays 8% semi-annual coupon was issued when the yield was 6.50%. If the yield goes down 85 basis points, what would be the predicted price of the bond as per duration? What would be the actual price of the bond if the yield is really down 85 basis points? Is there any difference between the Bond Price from your previous predicted Price; if so why?

4. BanglaLink is issuing a 10 year bond that pays 8% coupon. If your required rate of return or required yield to invest in this bond is 11%, how much would you be willing to pay for this bond? If your required yield is 8%, how much would you pay for this bond?

5. You are looking to buy a house that will cost $300,000. You plan to finance the purchase through a down payment of 25% from your savings and the rest you will take a 15 year mortgage from Lanka Bangla Finance that will charge you 8.5% interest on the mortgage amount. a) What would be your monthly payment on this mortgage? b) Please show the first 3 payments ONLY on this mortgage from the amortization schedule.