NEED HELP! no links as answer pls The starting temperature at 6AM was - 2 degrees * F . Over a period of four hours, the temperature rose 3 degrees , rose another 2 degrees , dropped 4 degrees , and then dropped another 1 degrees . What was the temperature after those four hours?

Needs Expression also btw

What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.

In the diagram of circle o, what is the measure of zabc?

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