Hey, Can someone help me Solve this Math problem

What properties allow transformation to be used as a problem solving tool

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.

Mr. t has been dating his girlfriend for one year nine months and six days how many hours has mr. t been in a relationship