Find the value for a.

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?

Is the power produced directly proportional to the wind speed, give reasons for your answer?

Paul’s car is 18 feet long. he is making a model of his car that is 1/6 the actual size. what is the length of the model?