please need all three answer

Problem 5-20 Future Value of Multiple Annuities (LG5-2) Assume that you contribute $340 per month to a retirement plan for 25 years. Then you are able to increase the contribution to $540 per month for the next 25 years. Given a 7.2 percent interest rate, what is the value of your retirement plan after the 50 years? (Do not round Intermediate calculations and round your final answer to 2 decimal places.) Future value of multiple annuities Problem 5-34 Annuity Interest Rate (LG5-8) What's the interest rate of a 6-year, annual $4,400 annuity with present value of $20,000? (Use a time value of money calculator or spreadsheet. Round your answer to 2 decimal places.) Annuity interest rate % Problem 5-41 Number of Annuity Payments (LG5-9) Joey realizes that he has charged too much on his credit card and has racked up $5,300 in debt. If he can pay $150 each month and the card charges 12 percent APR (compounded monthly), how long will it take him to pay off the debt? (Do not round intermediate calculations and round your final answer to 2 decimal places.) Time to pay off the debt months