Answer: 
Step-by-step explanation:
the conjugate is:

Answer:
138 degrees
Step-by-step explanation:
A straight line/angle is 180 degrees so subtract 42 degrees from that to get 138 degrees.
I explained as best and simple as I could, I hope I helped!!!
Answer:
DAMMIT I BIT MY FINGER
Step-by-step explanation:
Mabye try making the triangle a right triangle and use SohCahToa (sin, cos, tan) to figure out each angle?