i need help asap.I baked pound cakes well i use a round pan 12x3 for the first time cake didn't ome out well.I bake my cakes for 1:45 mins.at 300degs. How long should i bake it in a 12x3 pan and should i keep the same tem.Please help asap/

Baking for a specific time is never the best idea. you simply "bake until done." Use the finger poke and a tester to determine doneness.

I usually preheat to 350 then turn down to 325 once pan goes in. Also, I use baking strips and a heating core. HTH