Plz answer correctly for 45 points i will give brainliest answer if correct

A) if $50000 is invested in a bank account that pays 9.3% of interest compounded on a six-monthly basis, how much money will be in the account after 3 and 12 years? b) if matusalen's father had put $2.0 in the bank when he was born and there, how long would matusalen have had to his death (969 years later) if the interest was 7% per year composed each month and weekly?

Which one ? is the answer and how to find this answer

What is the solution to the division problem below x3+x2-11x+4/x+4