please answer in formulas and round decimals to two decimal places for interest rates and dollar amounts

1. Avraham Augenblatt is planning to make semiannual payments of $3,500 into a retirement account that pays 12.42% compounded semiannually. If his first payment will be one month from today how large will his retirement account be in 35 years? How much money will be in the account if his first payment is made today