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I need to show full work to the teacher ?
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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?

Acircle has a circumference of 7.850 units. what is its radius?

700 miles the train takes 5 hours to a travel the distance at what unit rate is the train traveling?