 
 <prompt> Marianne bin dey 20 years old wen Bella bin dey 8 years old. How old Marianne go dey wen Bella turn 18? <response>: ```Marianne na 20 - 8 = 12 years older pass Bella.
Bella go turn 18 for 18 - 8 = 10 years.
So, Marianne go dey 20 + 10 = 30 years old dat time.

Answer na 30.``` 