12. For the layer you selected, the temperature ranges from the temperature at Earth's surface, to (1 point)

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?

Acircle has a circumference of 7.850 units. what is its radius?

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