Question

SOMEONE PLEASE HELP!!!
what is the value of x?
A.15
B.25
C.30
D.35

Answer 1

The answer is D, 35 degrees. The 35 degree angle and angle x are opposite interior angles and are therefore congruent in measure. 

Answer 2

The answer is C) 30 degrees

Note how the 30 degree angle and the x degree angle are both inscribed angles that cut off (or subtend) the same arc. By the inscribed angle theorem, the two inscribed angles are therefore equal to one another.