QUESTION AT THE BOTTOM MAKE SURE YOU ARE RIGHT

Answer:
166
Step-by-step explanation:
The answer is in the image above
Answer:
X=2.8, <A=59.6 degrees.
Step-by-step explanation:
Sorry if it's wrong, Angles B and A are supplimentary
(7x+40)+(3x+112)=180
10x=28
x=2.8
2.8*7+40=59.6 degrees