BUSINESS CALCULATORS ONLY!

i need help with these and how to do them on the financial calculator. thank you.

A. What would the value in today's dollars be if you receive $30,000 per month, starting five years from today, for ten years (120 payments)? Assume your interest rate is 9% (monthly). B. If you were offered $733,750 today or $250,000 per year for five years with the first of these payments coming five years from today, which has a higher value assuming you have an 8% opportunity cost? C. You can receive $250,000 ten years from today or $500,000 twenty-five years from today. What interest rate makes them equivalent