So lets start out this problem with the initial amount of money jesse has:
$36.50 x (2 (times a month)) x (3 months) = $219
Then, you take 1/4 of his money (which can be converted to the decimal 0.25) and you subtract it from $219
$219 - ($219 x 0.25)
$219 - $54.75 = $164.25
Next, you have to subtract Jesse's lunch ($14.25) from the money he has left after purchasing his tow rope and bathing suit.
$164.25 - $14.25 = $150
Jesse's wake board cost him $150.