The equation of line n is 8x - 14y + 3 = 0. For what value of k is the graph of kx - 7y + 10 = 0 parallel to line n?

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?