Help needed very much

Thankd

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 fraction is equal to 1hole and 2/5? a.3/5 b.75 c.57 d.73

Which of the following statements would be sufficient to prove that parallelograms pqrs is a rectangle ?