without excel please

4. The state lottery claims that its grand prize is $5 million. The lucky winner will receive $250,000 upon presentation of the winning ticket plus $250,000 at the end of each year for the next 19 years. Assume 5% discount rate. a-Why isn't this really a million-dollar prize? (5 Points) b-What would it actually be worth in dollars to you? (5 Points)