8the table shows lan's grades on two science tests.
which inequality could be used to find the average
grade ian must score on the next two tests in order to
maintain an average of at least 90?
test 1 2 3
score 2 96 82 ?
a 4x +96 +82 > 90
b 2x +178 90
cx+178 > 270
d 2x + 178 > 360
what are the s

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