Two triangles, RPQ and NQP are placed together to create a parallelogram as shown below.

Triangles R P Q and N Q P are connected at side P Q. Angle R is 60 degrees, angle R P Q is 80 degrees, angle N Q P is 80 degrees, and angle Q P N is 40 degrees.

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?

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At the beginning of year 1, carlos invests $600 at an annual compound interest rate of 4%. he makes no deposits to or withdrawals from the account. which explicit formula can be used to find the account's balance at the beginning of year 5? what is, the balance?