Plot the Improved Euler’s method approximation for all 4 step sizes on a single set of axes. + Plot the Runge-Kutta (RK4) method approximation for all 4 step sizes on a single set of axes. + Compare and contrast the approximations and plots you created.

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?