Help. Please. Help me.

Answer:
n=24.... B
Step-by-step explanation:
*Segment AB makes a linear angle which is equal to 180 degrees
1) n+108+2n =180
2) n=24
Part B:
Plug in 24 where it says "2n"
1) 2x24=48
So angle DOB is equal to 48 degrees
Hoped that helped ;)