Ik someone out there know this, can someone help?

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.

Pleas its really urgent and i would really appreciate it! what is the value of x? enter your answer in the box. x =

Find an equation of variation where y varies directly as x and y 75 when x5, findy when x is 1