please show your work so I know how you did it :)

Bill makes annual deposits of $1700 to an IRA earning an annual interest rate of 7% compounded annually for 20 Kears. At the end of the 20 years Bill retires. a) What was the value of his IRA at the end of 20 years? Answer = $ = b) What is the largest amount Bill can withdraw annually for the next 17 years at the same interest rate? Answer = $