Crack in the nose of my board?

I recently bought a second hand board, 6ft if that makes a difference. I dont remember banging the nose on anything but I was picking it up to go surfing and I noticed there was this crack on the left hand rail and the nose of the board :
I am only 13 so it's not like I can fix it myself. I wanted to know if this is something I should get a guy at the shop to fix or if I can just leave it?
Im sure the crack wasnt there when I bought it (or maybe it was much smaller and I didnt notice and now its gotten bigger). If you do think it needs fixing can you give me a rough estimate of how much money it would cost?
Thanks very much
I am only 13 so it's not like I can fix it myself. I wanted to know if this is something I should get a guy at the shop to fix or if I can just leave it?
Im sure the crack wasnt there when I bought it (or maybe it was much smaller and I didnt notice and now its gotten bigger). If you do think it needs fixing can you give me a rough estimate of how much money it would cost?
Thanks very much