The difference of a number and seven is x - 7. So twice that, would be:
2(x - 7)
Answer:
C
Step-by-step explanation:
Line a intersects both lines c and d.
Line a is a transversal to lines c and d.
Angles 10 and 14 are corresponding angles.
Since corresponding angles are congruent, lines a and c are parallel.
Line b has nothing to do with this question.
Answer is choice A.