Please help me! geometry question!

40

Step-by-step explanation:

<AOC = 108°

<AOB = 3x + 4°

<BOC = 8x - 28°

< AOB + <BOC = <AOC

3x + 4° + 8x - 28° = 108°

11x - 24° = 108°

11x = 108° + 24°

11x = 132°

x = 132° / 11

x = 12°

< AOB = 3 *12° + 4° = 40°

Hope it will help :)

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

step-by-step explanation: