Eight times the reciprocal of a number equals 4 times the reciprocal of six. find the number

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?

If the scale factor between two circles is 2x/5y what is the ratio of their areas?

How to simply and write the answer n a whole number