What is the solution to the system of equations below? y= 1/2 x-4 and y = -2x-9 (-2,-5) (-2,-3) (2,-3) (2,-13)

40 points. given: two congruent angles ∠c and ∠r are supplementary. prove: ∠r and ∠c are both right angles. it doesn't have to be exactly 10 rows.statements reasons1. 1. 2. 2. 3. 3. 4. 4. 5. 5. 6. 6. 7. 7. 8. 8. 9. 9. 10. 10.