Answer
He must deposit $20891.12 to open a camera shop
Work Step by Step
To find the present value for an interest rate $r=0.06$ compounded $m=12$ times for $t=3$ years
$A=P(1+\frac{r}{m})^{tm}$
$25000=P(1+\frac{0.06}{12})^{3(12)}$
$P \approx 20891.12$