In a sweepstakes sponsored by gemini paper products, 10,000 entries have been received. if 1 grand prize is drawn, and 5 first prizes, 30 second prizes, and 400 third prizes are to be awarded, what is the probability that a person who has submitted one entry will win the following?

You are choosing between two health clubs. club a offers membership for a fee of $ 28 plus a monthly fee of $ 20. club b offers membership for a fee of $ 20 plus a monthly fee of $ 22. after how many months will the total cost of each health club be the same? what will be the total cost for each club? in __ months the total cost of each health club will be the same.