Which of these two students wrote an expression that is equivalent to ms. olsens expression? 3(4a+2b+2c)+2(a+c)

jake wrote 14a+5b+4c
olivia wrote 2(7a+3b+4c)

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

Ineed on this question me get the answer

Solve 30% of what = 60 step by step