X+4y=12
-x+6y=8
addition method

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?

Which value would be a solution for x in the inequality 47-4x< 7

The surface area of the triangular prism is .