Help with either question would be great!

Problem 5: An ordinary annuity pays 6% compounded monthly. If $400 is deposited into this annuity every month, how much is in the account after 25 years? Section 3.3: FV = PMT (1+i)" - PMT 1)--- Problem 6: An ordinary annuity pays 6% compounded monthly. What equal monthly deposits should be made into this annuity in order to have $500,000 in 30 years? (1+i)"-11 Section 3.3: FV = PMT (+)*]