In an effort to have enough money to finance his passion for top$-$level off$-$road racing, a mechanical engineering graduate decided to sell some of his $$toys$."$ At

time t $=0,$ he sold his chopper motorcycle for $$18,000.$

Six months later, he sold his Baja pre$-$runner SUV for

$$26,000.$ At the end of year $1,$ he got $$42,000$ for his

pro$-$light race truck. If he invested all of the money in

a high$-$risk commodity hedge fund that earned $24\%$

per year, compounded semiannually, how much did

he have in the account at the end of $2$ years?