pls help me solve both of them. thank you

You want to buy a $258,000 home. You plan to pay 20% as a down payment, and take out a 30 year loan for the rest. a) How much is the loan amount going to be? b) What will your monthly payments be if the interest rate is 5%? $ c) What will your monthly payments be if the interest rate is 6%? You deposit $400 each month into an account earning 6% interest compounded monthly. a) How much will you have in the account in 20 years? $ b) How much total money will you put into the account? c) How much total interest will you earn? $