Help plz I don’t have a lot of time what is the answer explain to me plz?!!! Plz don’t send a file it won’t work!

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

What is the approximate value of  x  in the equation below.–3.396–0.7080.3040.955

Find the distance between the pair of points a(-1,8) and b(-8,4)