Answer:
The answer is D, 68
Step-by-step
this is the Angles Outside a Circle Theorem
(If a tangent and a secant, two tangents, or two secants intersects in the the exterior of a circle, then the measure of the angle formed is one half the difference of the measures of the intercepted arcs.
math
one circle = 360 degrees
you do not know the other part of the circle
so... 360 - 248 = 112
now you want to divide 112 by two = 68
x = 68 degrees
