If $FV=PV(1+r)$ is the single$-$period formula for future value, which of the following is the single$-$period present value formula?

$PV=F\frac{V}{1-r}$

$PV=FV(1-r)$

$PV=FV(1+r)$

$PV=F\frac{V}{1+r}$