How much money could I charge for the laptop on Ebay?

The only deficit are the missing keys, with a new keyboard that you can get for 5-10 euro you can use it perfectly.

150 euro maybe

150? For an outdated laptop with an old dual core CPU, only 4GB ram, which is hardly enough even for office and win8.1?

Ok then maybe only 50-70😅

Thank you for your answers

You are welcome

50 to 80 euro I think it's just out of date, maybe only 40 euro but give that as a minimum value.

Okay thank you

With pleasure.