please solve these parts to question 57 and show steps

57. An ordinary annuity pays 7.44% compounded monthly. (A) A person deposits $100 monthly for 30 years and then makes equal monthly withdrawals for the next 15 years, reducing the balance to zero. What are the monthly withdrawals? How much interest is earned during the entire 45-year process? (B) If the person wants to make withdrawals of $2,000 per month for the last 15 years, how much must be deposited monthly for the first 30 years