What Is the slope of the line on the graph?

What is the smallest integer n such that n\sqrt{2} is greater than 20

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 of the following would be a good name for the function that takes the weight of a box and returns the energy needed to lift it?