Petrolyn motor oil is a combination of natural oil and synthetic oil. It contains liters of natural oil for every liters of synthetic oil. In order to make liters of Petrolyn oil, how many liters of natural oil are needed?

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.