help me please with those 3 questions

Assume that you have a balance of $4500 on your Discover credit card and that you make no more charges. Assume that Discover charges 30% APR and that each month you make only the minimum payment of 2.5% of the balance What will the balance be after 10 years? (Round your answer to the nearest cent) Assume that you have a balance of 53000 on your MasterCard and that you make no more charoel. Assume that MasterCard chroes 120 Aps and that each month you make only the minimum payment of 5% of the balance At what balance do you begin making payments of $40 or less? Submit Answer *** DUR Suppose we have a savings account eaming 3.5% APR. We need to have $5000 at the end of seven years. How much should we deposit each month to attain this goal (Round your answer to the nearest cent.) $ 52.52 X