Which of the following expressions are equivalent to -5+7-(-3). ( Choice A)
A
−5+7+3

(Choice B)
B
-5+7-3−5+7−3 minus, 5, plus, 7, minus, 3

(Choice C)
C
-5-(7-3)

(Choice D)
D
-(5-7-3)

(Choice E)
E
-(5+7)+3

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