Plzzz help I only have 20 minutes

Answer:
the value of n is 27 degree
Step-by-step explanation:
n+6+2n+3+90=180 degree (being linear pair)
3n+9+90=180
3n=180-99
3n=81
n=81/3
n=27
A linear pair is a pair of adjacent angles formed when two lines intersect.