Points A, B, and C are collinear. Point B is between A and C. Find the indicated length. Find AC if AB = 2x - 7, AC = 4x - 8 and BC = 9.

Find the value of the variable and the length of each secant segment.

Math it's appreciated. (picture provided)

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem