On a certain airline, passengers can make calls from telephones provided ny the airline. A call cost $3 to connect plus $2.50 for each minute. Which equation best represents c, the total cost for a call that lasts m minutes? m=2.5+3m

m=3+2.5c

c=3+2.5m

c=2.5+3m

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