please help with this practice problem, thanks so much for your help!

3. Unless stated otherwise assume an APR of 6% compounded semi- annually (a) (4 points) What is the effective annual rate? what is the ef- fective monthly rate? what is the effective two year rate? (b) (6 points) What is the price of a three year zero coupon bond with a face value of $5000? (C) (10 points) You own government bonds with a face value of $2 million. The bonds mature 6 years and 3 months from today and have a coupon rate of 12%, paid semi-annually. The next coupon will be paid in three months. How much are the bonds worth today