Which expression would be easier to simplify if you used the property to change the order of the numbers?
A. -3/5 +(-2/5) - 4
B. 130 + 70 + (-37)
C. 40 + (-58) + 160
D. (-40) + (-30) + 28

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