Can someone help me out with this?

Answer:
v is 9 degrees
Step-by-step explanation:
The 2 angles are supplementary angles
Therefore,
8v + 3 + 105 = 180 (supplementary angles add up to 180 degress/straight line)
8v = 180 - 105 - 3
8v = 75 - 3
8v = 72
v = 72/8
v = 9 degrees
happy to help :)