$\displaystyle v_i=0$ because it was from rest

$\displaystyle v_f=-165$ I suppose down is negative in this problem

$\displaystyle a=-9.8$ If you don't know why then you're in trouble, however that is in m/s so you have to convert to feet (which I forgot the conversion so you'll have to do it yourself)

$\displaystyle \Delta d=?$ This is what we're trying to find

Notice that they don't give time, so we'll use an equation without time.

The only one that comes to mind is: $\displaystyle v_f^2=v_i^2+2a\Delta d$

So then we switch things around to get: $\displaystyle \Delta d=\frac{v_f^2-v_i^2}{2a}$

So substitute to get the answer