can i upgrade my os x 10.9.5 to catalina

From the processor speed and the video card description, it appears you have a 13-inch mid-2010 MacBook Pro. If you wish to keep using it, it will/6 run up to macOS 10.13 High Sierra, which is still getting Security Updates. You can get High Sierra here:

How to upgrade to macOS High Sierra - Apple Support

You computer can run up to 8GB RAM, again, if you wish to keep in in service longer.

No. It requires a 2012 or newer model, and none of those had a Core 2 Duo CPU.

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